We're dividing 83927039 by 91 
The aim is to understand the frequency of 91 in 83927039.

Moving on to step 1:
The number 91 fits into 8 0 times, leaving a remainder of 8.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 8 to get 8.
Grab the next digit (3) from the dividend, add it to 8, then carry on: 83 / 91

Moving on to step 2:
When dividing 83 by 91, we get 0 with a remainder of 83.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 83 after subtracting 0 from 83.
Grab the next digit (9) from the dividend, add it to 83, then carry on: 839 / 91

Going ahead to step 3:
91 can be fit into 839 9 times, resulting in a remainder of 20.
Write down 9 as next digit of the result. 
Result so far: 9.0
Subtract 819 from 839 to get 20.
Bring next digit (2) of the dividend behind the 20 and repeat the process: 202 / 91

Let's proceed to step 4:
If we divide 202 by 91, we get 2 and a remainder of 20.
Write down 2 as next digit of the result. 
Result so far: 92.0
Subtracting 182 from 202 leaves us with 20.
Append the next digit (7) from the dividend to 20 and continue with: 207 / 91

Advancing to step 5:
207 divided by 91 is 2 with a remainder of 25.
The number 2 becomes the next digit in our result. 
Result so far: 922.0
If we subtract 182 from 207, we get 25.
Append the next digit (0) from the dividend to 25 and continue with: 250 / 91

Going ahead to step 6:
The number 91 fits into 250 2 times, leaving a remainder of 68.
The number 2 becomes the next digit in our result. 
Result so far: 9222.0
Subtract 182 from 250 to get 68.
Fetch the next digit (3) from the dividend, attach it to 68 and continue: 683 / 91

Let's proceed to step 7:
When dividing 683 by 91, we get 7 with a remainder of 46.
The next digit of our result is 7. 
Result so far: 92227.0
The remainder is 46 after subtracting 637 from 683.
Grab the next digit (9) from the dividend, add it to 46, then carry on: 469 / 91

Going ahead to step 8:
91 can be fit into 469 5 times, resulting in a remainder of 14.
The next digit of our result is 5. 
Result so far: 922275.0
Subtract 455 from 469 to get 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

Going ahead to step 9:
If we divide 140 by 91, we get 1 and a remainder of 49.
Record the quotient 1 as the next digit in the result. 
Result so far: 922275.1
If we subtract 91 from 140, we get 49.
Since there are no more digits in the dividend, we add a zero to the remainder making it 490, and continue the process.

Moving on to step 10:
When dividing 490 by 91, we get 5 with a remainder of 35.
The number 5 becomes the next digit in our result. 
Result so far: 922275.15
If we subtract 455 from 490, we get 35.
Since there are no more digits in the dividend, we add a zero to the remainder making it 350, and continue the process.

On to step 11:
91 goes into 350 3 times with a remainder of 77.
Use 3 as the next digit of our solution. 
Result so far: 922275.153
If we take 273 away from 350, we end up with 77.
Since there are no more digits in the dividend, we add a zero to the remainder making it 770, and continue the process.

Going ahead to step 12:
91 goes into 770 8 times with a remainder of 42.
The number 8 becomes the next digit in our result. 
Result so far: 922275.1538
The remainder is 42 after subtracting 728 from 770.
Since there are no more digits in the dividend, we add a zero to the remainder making it 420, and continue the process.

Let's proceed to step 13:
The number 91 fits into 420 4 times, leaving a remainder of 56.
Use 4 as the next digit of our solution. 
Result so far: 922275.15384
If we subtract 364 from 420, 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.

On to step 14:
91 goes into 560 6 times with a remainder of 14.
The number 6 becomes the next digit in our result. 
Result so far: 922275.153846
If we subtract 546 from 560, we get 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

Step 15:
The number 91 fits into 140 1 times, leaving a remainder of 49.
Use 1 as the next digit of our solution. 
Result so far: 922275.1538461
Subtract 91 from 140 to get 49.
Since there are no more digits in the dividend, we add a zero to the remainder making it 490, and continue the process.

Going ahead to step 16:
490 divided by 91 is 5 with a remainder of 35.
Put 5 as the next digit of the answer. 
Result so far: 922275.15384615
Subtract 455 from 490 to get 35.
Since there are no more digits in the dividend, we add a zero to the remainder making it 350, and continue the process.

The quotient of the division is 922275.15384615, and the remainder is 3.5e-08.