We look at the division of 81576257 by 632 
The aim is to understand the frequency of 632 in 81576257.

Advancing to step 1:
The number 632 fits into 8 0 times, leaving a remainder of 8.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 8 after subtracting 0 from 8.
Take the next digit (1) from the dividend and append it to 8, then repeat: 81 / 632

Let's proceed to step 2:
The number 632 fits into 81 0 times, leaving a remainder of 81.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 81 after subtracting 0 from 81.
Bring next digit (5) of the dividend behind the 81 and repeat the process: 815 / 632

Moving on to step 3:
The number 632 fits into 815 1 times, leaving a remainder of 183.
Write down 1 as next digit of the result. 
Result so far: 1.0
Subtract 632 from 815 to get 183.
Include the next digit (7) from the dividend after 183, then repeat: 1837 / 632

On to step 4:
632 can be fit into 1837 2 times, resulting in a remainder of 573.
Record the quotient 2 as the next digit in the result. 
Result so far: 12.0
Deduct 1264 from 1837 and we're left with 573.
Bring next digit (6) of the dividend behind the 573 and repeat the process: 5736 / 632

Advancing to step 5:
5736 divided by 632 is 9 with a remainder of 48.
Record the quotient 9 as the next digit in the result. 
Result so far: 129.0
Subtract 5688 from 5736 to get 48.
Append the next digit (2) from the dividend to 48 and continue with: 482 / 632

Let's proceed to step 6:
If we divide 482 by 632, we get 0 and a remainder of 482.
Use 0 as the next digit of our solution. 
Result so far: 1290.0
Subtracting 0 from 482 leaves us with 482.
Fetch the next digit (5) from the dividend, attach it to 482 and continue: 4825 / 632

Moving on to step 7:
4825 divided by 632 is 7 with a remainder of 401.
Use 7 as the next digit of our solution. 
Result so far: 12907.0
If we subtract 4424 from 4825, we get 401.
Take the next digit (7) from the dividend and append it to 401, then repeat: 4017 / 632

Let's proceed to step 8:
The number 632 fits into 4017 6 times, leaving a remainder of 225.
Put 6 as the next digit of the answer. 
Result so far: 129076.0
If we subtract 3792 from 4017, we get 225.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2250, and continue the process.

Let's proceed to step 9:
632 goes into 2250 3 times with a remainder of 354.
The next digit of our result is 3. 
Result so far: 129076.3
If we subtract 1896 from 2250, we get 354.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3540, and continue the process.

Going ahead to step 10:
The number 632 fits into 3540 5 times, leaving a remainder of 380.
Write down 5 as next digit of the result. 
Result so far: 129076.35
If we subtract 3160 from 3540, we get 380.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3800, and continue the process.

Advancing to step 11:
When dividing 3800 by 632, we get 6 with a remainder of 8.
Put 6 as the next digit of the answer. 
Result so far: 129076.356
Deduct 3792 from 3800 and we're left with 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Going ahead to step 12:
When dividing 80 by 632, we get 0 with a remainder of 80.
Record the quotient 0 as the next digit in the result. 
Result so far: 129076.356
The remainder is 80 after subtracting 0 from 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

Step 13:
If we divide 800 by 632, we get 1 and a remainder of 168.
Use 1 as the next digit of our solution. 
Result so far: 129076.35601
Subtract 632 from 800 to get 168.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1680, and continue the process.

On to step 14:
632 goes into 1680 2 times with a remainder of 416.
Put 2 as the next digit of the answer. 
Result so far: 129076.356012
Subtracting 1264 from 1680 leaves us with 416.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4160, and continue the process.

Going ahead to step 15:
When dividing 4160 by 632, we get 6 with a remainder of 368.
Write down 6 as next digit of the result. 
Result so far: 129076.3560126
If we take 3792 away from 4160, we end up with 368.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3680, and continue the process.

Going ahead to step 16:
3680 divided by 632 is 5 with a remainder of 520.
Put 5 as the next digit of the answer. 
Result so far: 129076.35601265
Deduct 3160 from 3680 and we're left with 520.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5200, and continue the process.

The final result is 129076.35601265 with a remainder of 5.2e-07.