571729 divided by 87 
The aim is to understand the frequency of 87 in 571729.

Moving on to step 1:
If we divide 5 by 87, we get 0 and a remainder of 5.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 5 to get 5.
Take the next digit (7) from the dividend and append it to 5, then repeat: 57 / 87

On to step 2:
The number 87 fits into 57 0 times, leaving a remainder of 57.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 57 leaves us with 57.
Take the next digit (1) from the dividend and append it to 57, then repeat: 571 / 87

Moving on to step 3:
87 can be fit into 571 6 times, resulting in a remainder of 49.
Use 6 as the next digit of our solution. 
Result so far: 6.0
Deduct 522 from 571 and we're left with 49.
Grab the next digit (7) from the dividend, add it to 49, then carry on: 497 / 87

Step 4:
The number 87 fits into 497 5 times, leaving a remainder of 62.
Record the quotient 5 as the next digit in the result. 
Result so far: 65.0
Subtract 435 from 497 to get 62.
Fetch the next digit (2) from the dividend, attach it to 62 and continue: 622 / 87

Advancing to step 5:
The number 87 fits into 622 7 times, leaving a remainder of 13.
Put 7 as the next digit of the answer. 
Result so far: 657.0
If we subtract 609 from 622, we get 13.
Bring next digit (9) of the dividend behind the 13 and repeat the process: 139 / 87

On to step 6:
The number 87 fits into 139 1 times, leaving a remainder of 52.
Put 1 as the next digit of the answer. 
Result so far: 6571.0
The remainder is 52 after subtracting 87 from 139.
Since there are no more digits in the dividend, we add a zero to the remainder making it 520, and continue the process.

Moving on to step 7:
520 divided by 87 is 5 with a remainder of 85.
Use 5 as the next digit of our solution. 
Result so far: 6571.5
Deduct 435 from 520 and we're left with 85.
Since there are no more digits in the dividend, we add a zero to the remainder making it 850, and continue the process.

Let's proceed to step 8:
When dividing 850 by 87, we get 9 with a remainder of 67.
Use 9 as the next digit of our solution. 
Result so far: 6571.59
The remainder is 67 after subtracting 783 from 850.
Since there are no more digits in the dividend, we add a zero to the remainder making it 670, and continue the process.

Going ahead to step 9:
670 divided by 87 is 7 with a remainder of 61.
Record the quotient 7 as the next digit in the result. 
Result so far: 6571.597
Subtract 609 from 670 to get 61.
Since there are no more digits in the dividend, we add a zero to the remainder making it 610, and continue the process.

Step 10:
87 goes into 610 7 times with a remainder of 1.
Write down 7 as next digit of the result. 
Result so far: 6571.5977
The remainder is 1 after subtracting 609 from 610.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

After the division, we end up with 6571.5977 and a remainder of 1e-05.