We look at the division of 501988 by 60 
The aim is to understand the frequency of 60 in 501988.

On to step 1:
60 goes into 5 0 times with a remainder of 5.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 5 and we're left with 5.
Fetch the next digit (0) from the dividend, attach it to 5 and continue: 50 / 60

Step 2:
When dividing 50 by 60, we get 0 with a remainder of 50.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 50 to get 50.
Bring next digit (1) of the dividend behind the 50 and repeat the process: 501 / 60

Advancing to step 3:
60 goes into 501 8 times with a remainder of 21.
Put 8 as the next digit of the answer. 
Result so far: 8.0
If we take 480 away from 501, we end up with 21.
Grab the next digit (9) from the dividend, add it to 21, then carry on: 219 / 60

Step 4:
If we divide 219 by 60, we get 3 and a remainder of 39.
The number 3 becomes the next digit in our result. 
Result so far: 83.0
Subtract 180 from 219 to get 39.
Fetch the next digit (8) from the dividend, attach it to 39 and continue: 398 / 60

Step 5:
398 divided by 60 is 6 with a remainder of 38.
Use 6 as the next digit of our solution. 
Result so far: 836.0
If we subtract 360 from 398, we get 38.
Fetch the next digit (8) from the dividend, attach it to 38 and continue: 388 / 60

Step 6:
If we divide 388 by 60, we get 6 and a remainder of 28.
The next digit of our result is 6. 
Result so far: 8366.0
If we subtract 360 from 388, we get 28.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

Let's proceed to step 7:
The number 60 fits into 280 4 times, leaving a remainder of 40.
The next digit of our result is 4. 
Result so far: 8366.4
Deduct 240 from 280 and we're left with 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Let's proceed to step 8:
The number 60 fits into 400 6 times, leaving a remainder of 40.
The next digit of our result is 6. 
Result so far: 8366.46
The remainder is 40 after subtracting 360 from 400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Advancing to step 9:
If we divide 400 by 60, we get 6 and a remainder of 40.
Write down 6 as next digit of the result. 
Result so far: 8366.466
The remainder is 40 after subtracting 360 from 400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Our division results in 8366.466 with a remaining 0.004.