✅ C# Academy Math Game Issues

public void StartDivGame(string username, DateTime date, int totalQuestions, string difficulty)
{
    int score = 0;
    Stopwatch timer = new Stopwatch();

    timer.Start();
    for (int i = 0; i < totalQuestions; i++)
    {
        int[] numbers = GetNumber(difficulty);
        
        int number1 = numbers[0];
        int number2 = numbers[1];

        while (number1 % number2 != 0)
        {
            numbers = GetNumber(difficulty);

            number1 = numbers[0];
            number2 = numbers[1];
        }

        int solution = number1 / number2;
        string question = $"{number1} / {number2} = ";
        
        Console.ForegroundColor = ConsoleColor.White;
        Console.Write(question);
        string guess = Console.ReadLine();
        int input = Helpers.ValidateNumericInput(question, guess);

        if (input == solution)
        {
            score++;
            Console.ForegroundColor = ConsoleColor.Green;
            Console.WriteLine($"\nYou Got It Right! Score: {score}");

            Console.ForegroundColor = ConsoleColor.White;
            Console.WriteLine("\nPress Any Key For Next Question");
            Console.ReadLine();
        }
        else
        {
            Console.ForegroundColor = ConsoleColor.Red;
            Console.WriteLine("\nOh No. You Got It Wrong. Next Question");

            Console.ForegroundColor = ConsoleColor.Cyan;
            Console.WriteLine($"Correct Solution: {solution}");

            Console.ForegroundColor = ConsoleColor.White;
            Console.WriteLine("\nPress Any Key For Next Question");
            Console.ReadLine();
        }

        Console.Clear();
    }

    timer.Stop();
    
    GameModel newGame = CreateGame(username, date, "Multiplication", score, totalQuestions, difficulty, timer.Elapsed.ToString(@"hh\:mm\:ss"));
    PreviousGames.SaveGame(newGame);

    Console.ForegroundColor = ConsoleColor.Magenta;
    Console.WriteLine("Game Over! Press Any Key To Go To Main Menu");
    Console.ReadLine();
    
    GameMenu.ShowMenu(username, date);
}
private static int[] GetNumber(string difficulty)
{
    Random rng = new();
    int firstNumber = 0;
    int secondNumber = 0;
    var result = new int[2];
    
    if (difficulty == "Easy")
    {
        firstNumber = rng.Next(0, 99);
        secondNumber = rng.Next(0, 99);
    }
    else if (difficulty == "Medium")
    {
        firstNumber = rng.Next(100, 199);
        secondNumber = rng.Next(100,199);
    }
    else if (difficulty == "Hard")
    {
        firstNumber = rng.Next(200,299);
        secondNumber = rng.Next(200,299);
    }

    result[0] = firstNumber;
    result[1] = secondNumber;

    return result;
}