92724 ÷ 91 
The aim is to understand the frequency of 91 in 92724.

On to step 1:
When dividing 9 by 91, we get 0 with a remainder of 9.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 9 and we're left with 9.
Grab the next digit (2) from the dividend, add it to 9, then carry on: 92 / 91

On to step 2:
92 divided by 91 is 1 with a remainder of 1.
Write down 1 as next digit of the result. 
Result so far: 1.0
Deduct 91 from 92 and we're left with 1.
Take the next digit (7) from the dividend and append it to 1, then repeat: 17 / 91

On to step 3:
If we divide 17 by 91, we get 0 and a remainder of 17.
Put 0 as the next digit of the answer. 
Result so far: 10.0
If we take 0 away from 17, we end up with 17.
Append the next digit (2) from the dividend to 17 and continue with: 172 / 91

Going ahead to step 4:
91 goes into 172 1 times with a remainder of 81.
Use 1 as the next digit of our solution. 
Result so far: 101.0
Subtract 91 from 172 to get 81.
Bring next digit (4) of the dividend behind the 81 and repeat the process: 814 / 91

Step 5:
91 can be fit into 814 8 times, resulting in a remainder of 86.
The number 8 becomes the next digit in our result. 
Result so far: 1018.0
If we subtract 728 from 814, we get 86.
Since there are no more digits in the dividend, we add a zero to the remainder making it 860, and continue the process.

Advancing to step 6:
860 divided by 91 is 9 with a remainder of 41.
The next digit of our result is 9. 
Result so far: 1018.9
If we subtract 819 from 860, we get 41.
Since there are no more digits in the dividend, we add a zero to the remainder making it 410, and continue the process.

On to step 7:
The number 91 fits into 410 4 times, leaving a remainder of 46.
Use 4 as the next digit of our solution. 
Result so far: 1018.94
The remainder is 46 after subtracting 364 from 410.
Since there are no more digits in the dividend, we add a zero to the remainder making it 460, and continue the process.

On to step 8:
91 can be fit into 460 5 times, resulting in a remainder of 5.
Record the quotient 5 as the next digit in the result. 
Result so far: 1018.945
Subtracting 455 from 460 leaves us with 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Let's proceed to step 9:
91 goes into 50 0 times with a remainder of 50.
Record the quotient 0 as the next digit in the result. 
Result so far: 1018.945
Deduct 0 from 50 and we're left with 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Going ahead to step 10:
500 divided by 91 is 5 with a remainder of 45.
The next digit of our result is 5. 
Result so far: 1018.94505
Subtract 455 from 500 to get 45.
Since there are no more digits in the dividend, we add a zero to the remainder making it 450, and continue the process.

Advancing to step 11:
91 can be fit into 450 4 times, resulting in a remainder of 86.
Put 4 as the next digit of the answer. 
Result so far: 1018.945054
Deduct 364 from 450 and we're left with 86.
Since there are no more digits in the dividend, we add a zero to the remainder making it 860, and continue the process.

Let's proceed to step 12:
If we divide 860 by 91, we get 9 and a remainder of 41.
Record the quotient 9 as the next digit in the result. 
Result so far: 1018.9450549
Deduct 819 from 860 and we're left with 41.
Since there are no more digits in the dividend, we add a zero to the remainder making it 410, and continue the process.

On to step 13:
If we divide 410 by 91, we get 4 and a remainder of 46.
Use 4 as the next digit of our solution. 
Result so far: 1018.94505494
If we take 364 away from 410, we end up with 46.
Since there are no more digits in the dividend, we add a zero to the remainder making it 460, and continue the process.

After the division, we end up with 1018.94505494 and a remainder of 4.6e-08.