We divide 525517 by 87
The aim is to understand the frequency of 87 in 525517.

Advancing to step 1:
When dividing 5 by 87, we get 0 with a remainder of 5.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 5 leaves us with 5.
Append the next digit (2) from the dividend to 5 and continue with: 52 / 87

Let's proceed to step 2:
87 goes into 52 0 times with a remainder of 52.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 52, we get 52.
Fetch the next digit (5) from the dividend, attach it to 52 and continue: 525 / 87

On to step 3:
525 divided by 87 is 6 with a remainder of 3.
The number 6 becomes the next digit in our result. 
Result so far: 6.0
The remainder is 3 after subtracting 522 from 525.
Include the next digit (5) from the dividend after 3, then repeat: 35 / 87

Advancing to step 4:
87 can be fit into 35 0 times, resulting in a remainder of 35.
Use 0 as the next digit of our solution. 
Result so far: 60.0
The remainder is 35 after subtracting 0 from 35.
Grab the next digit (1) from the dividend, add it to 35, then carry on: 351 / 87

Moving on to step 5:
If we divide 351 by 87, we get 4 and a remainder of 3.
Put 4 as the next digit of the answer. 
Result so far: 604.0
Deduct 348 from 351 and we're left with 3.
Include the next digit (7) from the dividend after 3, then repeat: 37 / 87

Going ahead to step 6:
87 can be fit into 37 0 times, resulting in a remainder of 37.
Record the quotient 0 as the next digit in the result. 
Result so far: 6040.0
Deduct 0 from 37 and we're left with 37.
Since there are no more digits in the dividend, we add a zero to the remainder making it 370, and continue the process.

Let's proceed to step 7:
87 goes into 370 4 times with a remainder of 22.
Write down 4 as next digit of the result. 
Result so far: 6040.4
Deduct 348 from 370 and we're left with 22.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

Going ahead to step 8:
If we divide 220 by 87, we get 2 and a remainder of 46.
Write down 2 as next digit of the result. 
Result so far: 6040.42
If we take 174 away from 220, we end up with 46.
Since there are no more digits in the dividend, we add a zero to the remainder making it 460, and continue the process.

Advancing to step 9:
When dividing 460 by 87, we get 5 with a remainder of 25.
Put 5 as the next digit of the answer. 
Result so far: 6040.425
Subtracting 435 from 460 leaves us with 25.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

Advancing to step 10:
The number 87 fits into 250 2 times, leaving a remainder of 76.
Write down 2 as next digit of the result. 
Result so far: 6040.4252
If we take 174 away from 250, we end up with 76.
Since there are no more digits in the dividend, we add a zero to the remainder making it 760, and continue the process.

Step 11:
87 goes into 760 8 times with a remainder of 64.
The next digit of our result is 8. 
Result so far: 6040.42528
Deduct 696 from 760 and we're left with 64.
Since there are no more digits in the dividend, we add a zero to the remainder making it 640, and continue the process.

On to step 12:
87 goes into 640 7 times with a remainder of 31.
The number 7 becomes the next digit in our result. 
Result so far: 6040.425287
Subtracting 609 from 640 leaves us with 31.
Since there are no more digits in the dividend, we add a zero to the remainder making it 310, and continue the process.

Step 13:
87 can be fit into 310 3 times, resulting in a remainder of 49.
Put 3 as the next digit of the answer. 
Result so far: 6040.4252873
If we subtract 261 from 310, we get 49.
Since there are no more digits in the dividend, we add a zero to the remainder making it 490, and continue the process.

Going ahead to step 14:
When dividing 490 by 87, we get 5 with a remainder of 55.
Put 5 as the next digit of the answer. 
Result so far: 6040.42528735
If we subtract 435 from 490, we get 55.
Since there are no more digits in the dividend, we add a zero to the remainder making it 550, and continue the process.

After the division, we end up with 6040.42528735 and a remainder of 5.5e-08.