12543211 divided by 88 
The aim is to understand the frequency of 88 in 12543211.

Going ahead to step 1:
88 can be fit into 1 0 times, resulting in a remainder of 1.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 1 to get 1.
Include the next digit (2) from the dividend after 1, then repeat: 12 / 88

Going ahead to step 2:
When dividing 12 by 88, we get 0 with a remainder of 12.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 12 to get 12.
Bring next digit (5) of the dividend behind the 12 and repeat the process: 125 / 88

Let's proceed to step 3:
If we divide 125 by 88, we get 1 and a remainder of 37.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
If we take 88 away from 125, we end up with 37.
Append the next digit (4) from the dividend to 37 and continue with: 374 / 88

Advancing to step 4:
88 goes into 374 4 times with a remainder of 22.
Write down 4 as next digit of the result. 
Result so far: 14.0
Deduct 352 from 374 and we're left with 22.
Grab the next digit (3) from the dividend, add it to 22, then carry on: 223 / 88

Going ahead to step 5:
The number 88 fits into 223 2 times, leaving a remainder of 47.
Write down 2 as next digit of the result. 
Result so far: 142.0
If we take 176 away from 223, we end up with 47.
Append the next digit (2) from the dividend to 47 and continue with: 472 / 88

On to step 6:
When dividing 472 by 88, we get 5 with a remainder of 32.
Write down 5 as next digit of the result. 
Result so far: 1425.0
Deduct 440 from 472 and we're left with 32.
Fetch the next digit (1) from the dividend, attach it to 32 and continue: 321 / 88

Moving on to step 7:
321 divided by 88 is 3 with a remainder of 57.
Use 3 as the next digit of our solution. 
Result so far: 14253.0
The remainder is 57 after subtracting 264 from 321.
Append the next digit (1) from the dividend to 57 and continue with: 571 / 88

On to step 8:
88 goes into 571 6 times with a remainder of 43.
The number 6 becomes the next digit in our result. 
Result so far: 142536.0
The remainder is 43 after subtracting 528 from 571.
Since there are no more digits in the dividend, we add a zero to the remainder making it 430, and continue the process.

Step 9:
88 goes into 430 4 times with a remainder of 78.
Write down 4 as next digit of the result. 
Result so far: 142536.4
If we take 352 away from 430, we end up with 78.
Since there are no more digits in the dividend, we add a zero to the remainder making it 780, and continue the process.

Step 10:
When dividing 780 by 88, we get 8 with a remainder of 76.
Write down 8 as next digit of the result. 
Result so far: 142536.48
Subtracting 704 from 780 leaves us 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.

Advancing to step 11:
If we divide 760 by 88, we get 8 and a remainder of 56.
The next digit of our result is 8. 
Result so far: 142536.488
If we subtract 704 from 760, we get 56.
Since there are no more digits in the dividend, we add a zero to the remainder making it 560, and continue the process.

The quotient of the division is 142536.488, and the remainder is 0.0056.