We divide 88137581 by 87
The aim is to understand the frequency of 87 in 88137581.

Advancing to step 1:
When dividing 8 by 87, we get 0 with a remainder of 8.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 8, we end up with 8.
Take the next digit (8) from the dividend and append it to 8, then repeat: 88 / 87

Moving on to step 2:
If we divide 88 by 87, we get 1 and a remainder of 1.
Use 1 as the next digit of our solution. 
Result so far: 1.0
If we subtract 87 from 88, we get 1.
Fetch the next digit (1) from the dividend, attach it to 1 and continue: 11 / 87

Moving on to step 3:
When dividing 11 by 87, we get 0 with a remainder of 11.
Record the quotient 0 as the next digit in the result. 
Result so far: 10.0
Deduct 0 from 11 and we're left with 11.
Grab the next digit (3) from the dividend, add it to 11, then carry on: 113 / 87

Step 4:
The number 87 fits into 113 1 times, leaving a remainder of 26.
Write down 1 as next digit of the result. 
Result so far: 101.0
If we subtract 87 from 113, we get 26.
Fetch the next digit (7) from the dividend, attach it to 26 and continue: 267 / 87

Going ahead to step 5:
267 divided by 87 is 3 with a remainder of 6.
The number 3 becomes the next digit in our result. 
Result so far: 1013.0
If we subtract 261 from 267, we get 6.
Append the next digit (5) from the dividend to 6 and continue with: 65 / 87

Advancing to step 6:
87 goes into 65 0 times with a remainder of 65.
The next digit of our result is 0. 
Result so far: 10130.0
Subtracting 0 from 65 leaves us with 65.
Fetch the next digit (8) from the dividend, attach it to 65 and continue: 658 / 87

On to step 7:
The number 87 fits into 658 7 times, leaving a remainder of 49.
Write down 7 as next digit of the result. 
Result so far: 101307.0
If we take 609 away from 658, we end up with 49.
Fetch the next digit (1) from the dividend, attach it to 49 and continue: 491 / 87

Advancing to step 8:
If we divide 491 by 87, we get 5 and a remainder of 56.
Put 5 as the next digit of the answer. 
Result so far: 1013075.0
If we take 435 away from 491, we end up with 56.
Since there are no more digits in the dividend, we add a zero to the remainder making it 560, and continue the process.

Advancing to step 9:
87 can be fit into 560 6 times, resulting in a remainder of 38.
Use 6 as the next digit of our solution. 
Result so far: 1013075.6
Subtract 522 from 560 to get 38.
Since there are no more digits in the dividend, we add a zero to the remainder making it 380, and continue the process.

Let's proceed to step 10:
The number 87 fits into 380 4 times, leaving a remainder of 32.
Put 4 as the next digit of the answer. 
Result so far: 1013075.64
If we take 348 away from 380, we end up with 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

Going ahead to step 11:
If we divide 320 by 87, we get 3 and a remainder of 59.
The next digit of our result is 3. 
Result so far: 1013075.643
If we subtract 261 from 320, we get 59.
Since there are no more digits in the dividend, we add a zero to the remainder making it 590, and continue the process.

Advancing to step 12:
590 divided by 87 is 6 with a remainder of 68.
The next digit of our result is 6. 
Result so far: 1013075.6436
Deduct 522 from 590 and we're left with 68.
Since there are no more digits in the dividend, we add a zero to the remainder making it 680, and continue the process.

Going ahead to step 13:
87 goes into 680 7 times with a remainder of 71.
Write down 7 as next digit of the result. 
Result so far: 1013075.64367
If we take 609 away from 680, we end up with 71.
Since there are no more digits in the dividend, we add a zero to the remainder making it 710, and continue the process.

Step 14:
When dividing 710 by 87, we get 8 with a remainder of 14.
Write down 8 as next digit of the result. 
Result so far: 1013075.643678
If we subtract 696 from 710, we get 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

Advancing to step 15:
87 can be fit into 140 1 times, resulting in a remainder of 53.
Record the quotient 1 as the next digit in the result. 
Result so far: 1013075.6436781
If we subtract 87 from 140, we get 53.
Since there are no more digits in the dividend, we add a zero to the remainder making it 530, and continue the process.

Step 16:
530 divided by 87 is 6 with a remainder of 8.
The number 6 becomes the next digit in our result. 
Result so far: 1013075.64367816
Subtract 522 from 530 to get 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

The final result is 1013075.64367816 with a remainder of 8e-09.