We divide 500572 by 87
The aim is to understand the frequency of 87 in 500572.

Moving on to step 1:
87 can be fit into 5 0 times, resulting in a remainder of 5.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 5 after subtracting 0 from 5.
Bring next digit (0) of the dividend behind the 5 and repeat the process: 50 / 87

Moving on to step 2:
If we divide 50 by 87, we get 0 and a remainder of 50.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 50, we get 50.
Take the next digit (0) from the dividend and append it to 50, then repeat: 500 / 87

Let's proceed to step 3:
87 can be fit into 500 5 times, resulting in a remainder of 65.
The number 5 becomes the next digit in our result. 
Result so far: 5.0
If we take 435 away from 500, we end up with 65.
Append the next digit (5) from the dividend to 65 and continue with: 655 / 87

Let's proceed to step 4:
When dividing 655 by 87, we get 7 with a remainder of 46.
Record the quotient 7 as the next digit in the result. 
Result so far: 57.0
Deduct 609 from 655 and we're left with 46.
Fetch the next digit (7) from the dividend, attach it to 46 and continue: 467 / 87

Moving on to step 5:
87 can be fit into 467 5 times, resulting in a remainder of 32.
The number 5 becomes the next digit in our result. 
Result so far: 575.0
Deduct 435 from 467 and we're left with 32.
Grab the next digit (2) from the dividend, add it to 32, then carry on: 322 / 87

Let's proceed to step 6:
The number 87 fits into 322 3 times, leaving a remainder of 61.
Write down 3 as next digit of the result. 
Result so far: 5753.0
Subtracting 261 from 322 leaves us with 61.
Since there are no more digits in the dividend, we add a zero to the remainder making it 610, and continue the process.

Going ahead to step 7:
When dividing 610 by 87, we get 7 with a remainder of 1.
Put 7 as the next digit of the answer. 
Result so far: 5753.7
Deduct 609 from 610 and we're left with 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Step 8:
87 goes into 10 0 times with a remainder of 10.
The number 0 becomes the next digit in our result. 
Result so far: 5753.7
Subtracting 0 from 10 leaves us with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Let's proceed to step 9:
87 goes into 100 1 times with a remainder of 13.
The next digit of our result is 1. 
Result so far: 5753.701
Deduct 87 from 100 and we're left with 13.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

Advancing to step 10:
If we divide 130 by 87, we get 1 and a remainder of 43.
Put 1 as the next digit of the answer. 
Result so far: 5753.7011
If we subtract 87 from 130, we get 43.
Since there are no more digits in the dividend, we add a zero to the remainder making it 430, and continue the process.

The final outcome is 5753.7011, with a leftover of 0.00043.