We're dividing 81840883 by 657 
The aim is to understand the frequency of 657 in 81840883.

Moving on to step 1:
The number 657 fits into 8 0 times, leaving a remainder of 8.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 8 to get 8.
Bring next digit (1) of the dividend behind the 8 and repeat the process: 81 / 657

Step 2:
81 divided by 657 is 0 with a remainder of 81.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 81 and we're left with 81.
Grab the next digit (8) from the dividend, add it to 81, then carry on: 818 / 657

Moving on to step 3:
When dividing 818 by 657, we get 1 with a remainder of 161.
Put 1 as the next digit of the answer. 
Result so far: 1.0
Subtracting 657 from 818 leaves us with 161.
Fetch the next digit (4) from the dividend, attach it to 161 and continue: 1614 / 657

Step 4:
If we divide 1614 by 657, we get 2 and a remainder of 300.
Use 2 as the next digit of our solution. 
Result so far: 12.0
Subtract 1314 from 1614 to get 300.
Append the next digit (0) from the dividend to 300 and continue with: 3000 / 657

Step 5:
If we divide 3000 by 657, we get 4 and a remainder of 372.
Record the quotient 4 as the next digit in the result. 
Result so far: 124.0
The remainder is 372 after subtracting 2628 from 3000.
Append the next digit (8) from the dividend to 372 and continue with: 3728 / 657

Moving on to step 6:
The number 657 fits into 3728 5 times, leaving a remainder of 443.
Put 5 as the next digit of the answer. 
Result so far: 1245.0
If we take 3285 away from 3728, we end up with 443.
Take the next digit (8) from the dividend and append it to 443, then repeat: 4438 / 657

Step 7:
4438 divided by 657 is 6 with a remainder of 496.
The number 6 becomes the next digit in our result. 
Result so far: 12456.0
Deduct 3942 from 4438 and we're left with 496.
Take the next digit (3) from the dividend and append it to 496, then repeat: 4963 / 657

Moving on to step 8:
657 goes into 4963 7 times with a remainder of 364.
Record the quotient 7 as the next digit in the result. 
Result so far: 124567.0
Subtract 4599 from 4963 to get 364.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3640, and continue the process.

Going ahead to step 9:
When dividing 3640 by 657, we get 5 with a remainder of 355.
Write down 5 as next digit of the result. 
Result so far: 124567.5
If we subtract 3285 from 3640, we get 355.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3550, and continue the process.

Let's proceed to step 10:
If we divide 3550 by 657, we get 5 and a remainder of 265.
Put 5 as the next digit of the answer. 
Result so far: 124567.55
If we subtract 3285 from 3550, we get 265.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2650, and continue the process.

The final result is 124567.55 with a remainder of 0.265.