We're dividing 516525 by 88 
The aim is to understand the frequency of 88 in 516525.

On to step 1:
The number 88 fits into 5 0 times, leaving a remainder of 5.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 5 and we're left with 5.
Include the next digit (1) from the dividend after 5, then repeat: 51 / 88

Moving on to step 2:
When dividing 51 by 88, we get 0 with a remainder of 51.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 51, we end up with 51.
Bring next digit (6) of the dividend behind the 51 and repeat the process: 516 / 88

On to step 3:
If we divide 516 by 88, we get 5 and a remainder of 76.
The number 5 becomes the next digit in our result. 
Result so far: 5.0
Deduct 440 from 516 and we're left with 76.
Grab the next digit (5) from the dividend, add it to 76, then carry on: 765 / 88

On to step 4:
765 divided by 88 is 8 with a remainder of 61.
Put 8 as the next digit of the answer. 
Result so far: 58.0
If we take 704 away from 765, we end up with 61.
Bring next digit (2) of the dividend behind the 61 and repeat the process: 612 / 88

Moving on to step 5:
88 can be fit into 612 6 times, resulting in a remainder of 84.
Record the quotient 6 as the next digit in the result. 
Result so far: 586.0
Subtract 528 from 612 to get 84.
Append the next digit (5) from the dividend to 84 and continue with: 845 / 88

Going ahead to step 6:
88 can be fit into 845 9 times, resulting in a remainder of 53.
Put 9 as the next digit of the answer. 
Result so far: 5869.0
If we take 792 away from 845, we end up with 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 7:
88 goes into 530 6 times with a remainder of 2.
Put 6 as the next digit of the answer. 
Result so far: 5869.6
Subtract 528 from 530 to get 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Moving on to step 8:
The number 88 fits into 20 0 times, leaving a remainder of 20.
The number 0 becomes the next digit in our result. 
Result so far: 5869.6
Subtract 0 from 20 to get 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Step 9:
The number 88 fits into 200 2 times, leaving a remainder of 24.
Record the quotient 2 as the next digit in the result. 
Result so far: 5869.602
If we subtract 176 from 200, we get 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Step 10:
The number 88 fits into 240 2 times, leaving a remainder of 64.
Write down 2 as next digit of the result. 
Result so far: 5869.6022
The remainder is 64 after subtracting 176 from 240.
Since there are no more digits in the dividend, we add a zero to the remainder making it 640, and continue the process.

After the division, we end up with 5869.6022 and a remainder of 0.00064.