We look at the division of 85813 by 88 
The aim is to understand the frequency of 88 in 85813.

On to step 1:
If we divide 8 by 88, we get 0 and a remainder of 8.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 8, we end up with 8.
Grab the next digit (5) from the dividend, add it to 8, then carry on: 85 / 88

Going ahead to step 2:
When dividing 85 by 88, we get 0 with a remainder of 85.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 85, we get 85.
Grab the next digit (8) from the dividend, add it to 85, then carry on: 858 / 88

Advancing to step 3:
858 divided by 88 is 9 with a remainder of 66.
Put 9 as the next digit of the answer. 
Result so far: 9.0
If we take 792 away from 858, we end up with 66.
Include the next digit (1) from the dividend after 66, then repeat: 661 / 88

Step 4:
The number 88 fits into 661 7 times, leaving a remainder of 45.
The number 7 becomes the next digit in our result. 
Result so far: 97.0
If we take 616 away from 661, we end up with 45.
Bring next digit (3) of the dividend behind the 45 and repeat the process: 453 / 88

Moving on to step 5:
When dividing 453 by 88, we get 5 with a remainder of 13.
Put 5 as the next digit of the answer. 
Result so far: 975.0
Subtracting 440 from 453 leaves us 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.

On to step 6:
If we divide 130 by 88, we get 1 and a remainder of 42.
The number 1 becomes the next digit in our result. 
Result so far: 975.1
Deduct 88 from 130 and we're left with 42.
Since there are no more digits in the dividend, we add a zero to the remainder making it 420, and continue the process.

On to step 7:
88 can be fit into 420 4 times, resulting in a remainder of 68.
Put 4 as the next digit of the answer. 
Result so far: 975.14
Subtracting 352 from 420 leaves us 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.

Advancing to step 8:
When dividing 680 by 88, we get 7 with a remainder of 64.
Record the quotient 7 as the next digit in the result. 
Result so far: 975.147
Deduct 616 from 680 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.

Advancing to step 9:
88 goes into 640 7 times with a remainder of 24.
Put 7 as the next digit of the answer. 
Result so far: 975.1477
Subtracting 616 from 640 leaves us with 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

The final result is 975.1477 with a remainder of 0.00024.