We're dividing 83792 by 81 
The aim is to understand the frequency of 81 in 83792.

Step 1:
81 goes into 8 0 times with a remainder of 8.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 8 after subtracting 0 from 8.
Grab the next digit (3) from the dividend, add it to 8, then carry on: 83 / 81

Step 2:
83 divided by 81 is 1 with a remainder of 2.
Put 1 as the next digit of the answer. 
Result so far: 1.0
If we take 81 away from 83, we end up with 2.
Bring next digit (7) of the dividend behind the 2 and repeat the process: 27 / 81

Moving on to step 3:
When dividing 27 by 81, we get 0 with a remainder of 27.
Use 0 as the next digit of our solution. 
Result so far: 10.0
If we subtract 0 from 27, we get 27.
Fetch the next digit (9) from the dividend, attach it to 27 and continue: 279 / 81

Moving on to step 4:
If we divide 279 by 81, we get 3 and a remainder of 36.
The next digit of our result is 3. 
Result so far: 103.0
Deduct 243 from 279 and we're left with 36.
Append the next digit (2) from the dividend to 36 and continue with: 362 / 81

Going ahead to step 5:
The number 81 fits into 362 4 times, leaving a remainder of 38.
Use 4 as the next digit of our solution. 
Result so far: 1034.0
Deduct 324 from 362 and we're left with 38.
Since there are no more digits in the dividend, we add a zero to the remainder making it 380, and continue the process.

Advancing to step 6:
380 divided by 81 is 4 with a remainder of 56.
Record the quotient 4 as the next digit in the result. 
Result so far: 1034.4
If we take 324 away from 380, we end up with 56.
Since there are no more digits in the dividend, we add a zero to the remainder making it 560, and continue the process.

Step 7:
560 divided by 81 is 6 with a remainder of 74.
Put 6 as the next digit of the answer. 
Result so far: 1034.46
Deduct 486 from 560 and we're left with 74.
Since there are no more digits in the dividend, we add a zero to the remainder making it 740, and continue the process.

Going ahead to step 8:
When dividing 740 by 81, we get 9 with a remainder of 11.
The next digit of our result is 9. 
Result so far: 1034.469
Subtracting 729 from 740 leaves us with 11.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

Moving on to step 9:
81 can be fit into 110 1 times, resulting in a remainder of 29.
Use 1 as the next digit of our solution. 
Result so far: 1034.4691
If we take 81 away from 110, we end up with 29.
Since there are no more digits in the dividend, we add a zero to the remainder making it 290, and continue the process.

On to step 10:
81 can be fit into 290 3 times, resulting in a remainder of 47.
Write down 3 as next digit of the result. 
Result so far: 1034.46913
Subtracting 243 from 290 leaves us with 47.
Since there are no more digits in the dividend, we add a zero to the remainder making it 470, and continue the process.

On to step 11:
470 divided by 81 is 5 with a remainder of 65.
The next digit of our result is 5. 
Result so far: 1034.469135
Subtract 405 from 470 to get 65.
Since there are no more digits in the dividend, we add a zero to the remainder making it 650, and continue the process.

Advancing to step 12:
If we divide 650 by 81, we get 8 and a remainder of 2.
Put 8 as the next digit of the answer. 
Result so far: 1034.4691358
Subtracting 648 from 650 leaves us with 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 13:
If we divide 20 by 81, we get 0 and a remainder of 20.
The number 0 becomes the next digit in our result. 
Result so far: 1034.4691358
If we subtract 0 from 20, we 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.

Our division results in 1034.4691358 with a remaining 2e-08.