We're dividing 87091 by 88 
The aim is to understand the frequency of 88 in 87091.

Going ahead to step 1:
When dividing 8 by 88, we get 0 with a remainder of 8.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 8 after subtracting 0 from 8.
Append the next digit (7) from the dividend to 8 and continue with: 87 / 88

On to step 2:
If we divide 87 by 88, we get 0 and a remainder of 87.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 87, we end up with 87.
Take the next digit (0) from the dividend and append it to 87, then repeat: 870 / 88

Step 3:
The number 88 fits into 870 9 times, leaving a remainder of 78.
Record the quotient 9 as the next digit in the result. 
Result so far: 9.0
If we take 792 away from 870, we end up with 78.
Take the next digit (9) from the dividend and append it to 78, then repeat: 789 / 88

Step 4:
If we divide 789 by 88, we get 8 and a remainder of 85.
Record the quotient 8 as the next digit in the result. 
Result so far: 98.0
The remainder is 85 after subtracting 704 from 789.
Take the next digit (1) from the dividend and append it to 85, then repeat: 851 / 88

Advancing to step 5:
88 goes into 851 9 times with a remainder of 59.
The number 9 becomes the next digit in our result. 
Result so far: 989.0
Subtract 792 from 851 to 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.

Step 6:
If we divide 590 by 88, we get 6 and a remainder of 62.
The next digit of our result is 6. 
Result so far: 989.6
Subtracting 528 from 590 leaves us with 62.
Since there are no more digits in the dividend, we add a zero to the remainder making it 620, and continue the process.

Advancing to step 7:
If we divide 620 by 88, we get 7 and a remainder of 4.
Record the quotient 7 as the next digit in the result. 
Result so far: 989.67
Deduct 616 from 620 and we're left with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Advancing to step 8:
If we divide 40 by 88, we get 0 and a remainder of 40.
The next digit of our result is 0. 
Result so far: 989.67
Subtracting 0 from 40 leaves us 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.

Step 9:
The number 88 fits into 400 4 times, leaving a remainder of 48.
The number 4 becomes the next digit in our result. 
Result so far: 989.6704
Deduct 352 from 400 and we're left with 48.
Since there are no more digits in the dividend, we add a zero to the remainder making it 480, and continue the process.

On to step 10:
When dividing 480 by 88, we get 5 with a remainder of 40.
Use 5 as the next digit of our solution. 
Result so far: 989.67045
Deduct 440 from 480 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 11:
When dividing 400 by 88, we get 4 with a remainder of 48.
The number 4 becomes the next digit in our result. 
Result so far: 989.670454
If we take 352 away from 400, we end up with 48.
Since there are no more digits in the dividend, we add a zero to the remainder making it 480, and continue the process.

On to step 12:
The number 88 fits into 480 5 times, leaving a remainder of 40.
Put 5 as the next digit of the answer. 
Result so far: 989.6704545
Deduct 440 from 480 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.

Going ahead to step 13:
88 goes into 400 4 times with a remainder of 48.
The number 4 becomes the next digit in our result. 
Result so far: 989.67045454
If we subtract 352 from 400, we get 48.
Since there are no more digits in the dividend, we add a zero to the remainder making it 480, and continue the process.

In conclusion, the division gives 989.67045454 with a balance of 4.8e-08.