Update not updating numbers fast enough

Questions & Answers
1

I am starting to learn Unity, so I made a “Clicker” kind of game that uses the keyboard instead.
My CSharp script is like this

using UnityEngine;
using UnityEngine.UI;
using System.Collections;

public class Score : MonoBehaviour {

    public Text yourScore;
    public int score;
    public Button clickMe;
    public int counter1;
    public int purchased1;

    void Start () {
        score = 0;
        Debug.Log(Time.fixedDeltaTime.ToString());
	}
	void Update () {
        yourScore.text = "Money: " + score.ToString();
        if (Input.GetKeyDown(KeyCode.C))
        {
            score++;
        }
        if(score>= 100&& Input.GetKeyDown(KeyCode.K))
        {
            purchased1++;
            score = score - 100 ;
            Debug.Log(purchased1);
        }
        if (counter1 >= 500)
        {
            score++;
            counter1 = counter1 - 500;
        }
    }
    void FixedUpdate()
    {
        counter1 = counter1 + (1 * purchased1);
    }
}

The problem is that when purchased1 is a really big number (like 1000) counter1 starts to have a “backlog” of numbers. What I mean is that counter1 will stay with ex. 35000 and will slowly start substracting the 500 and adding 1 to score. Can I make it so the process of substracting is faster? I have tried putting it in FixedUpdate and Update with no luck. Thanks in advance.

2

If I understand what you’re trying to do correctly, this should help:

while (counter1 >= 500)
{
     score++;
     counter1 = counter1 - 500;
}