We look at the division of 107052 by 91 
The aim is to understand the frequency of 91 in 107052.

On to step 1:
When dividing 1 by 91, we get 0 with a remainder of 1.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 1 and we're left with 1.
Grab the next digit (0) from the dividend, add it to 1, then carry on: 10 / 91

Advancing to step 2:
10 divided by 91 is 0 with a remainder of 10.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 10 after subtracting 0 from 10.
Append the next digit (7) from the dividend to 10 and continue with: 107 / 91

Going ahead to step 3:
The number 91 fits into 107 1 times, leaving a remainder of 16.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
Subtracting 91 from 107 leaves us with 16.
Include the next digit (0) from the dividend after 16, then repeat: 160 / 91

Let's proceed to step 4:
The number 91 fits into 160 1 times, leaving a remainder of 69.
The number 1 becomes the next digit in our result. 
Result so far: 11.0
Deduct 91 from 160 and we're left with 69.
Grab the next digit (5) from the dividend, add it to 69, then carry on: 695 / 91

Going ahead to step 5:
If we divide 695 by 91, we get 7 and a remainder of 58.
Write down 7 as next digit of the result. 
Result so far: 117.0
If we take 637 away from 695, we end up with 58.
Bring next digit (2) of the dividend behind the 58 and repeat the process: 582 / 91

Step 6:
91 goes into 582 6 times with a remainder of 36.
Use 6 as the next digit of our solution. 
Result so far: 1176.0
Subtracting 546 from 582 leaves us with 36.
Since there are no more digits in the dividend, we add a zero to the remainder making it 360, and continue the process.

Advancing to step 7:
When dividing 360 by 91, we get 3 with a remainder of 87.
Record the quotient 3 as the next digit in the result. 
Result so far: 1176.3
Subtracting 273 from 360 leaves us with 87.
Since there are no more digits in the dividend, we add a zero to the remainder making it 870, and continue the process.

Going ahead to step 8:
The number 91 fits into 870 9 times, leaving a remainder of 51.
Use 9 as the next digit of our solution. 
Result so far: 1176.39
Deduct 819 from 870 and we're left with 51.
Since there are no more digits in the dividend, we add a zero to the remainder making it 510, and continue the process.

Step 9:
91 can be fit into 510 5 times, resulting in a remainder of 55.
Write down 5 as next digit of the result. 
Result so far: 1176.395
If we take 455 away from 510, we end up with 55.
Since there are no more digits in the dividend, we add a zero to the remainder making it 550, and continue the process.

On to step 10:
If we divide 550 by 91, we get 6 and a remainder of 4.
Put 6 as the next digit of the answer. 
Result so far: 1176.3956
If we take 546 away from 550, we end up with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Moving on to step 11:
91 goes into 40 0 times with a remainder of 40.
The number 0 becomes the next digit in our result. 
Result so far: 1176.3956
Deduct 0 from 40 and we're left with 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

On to step 12:
91 can be fit into 400 4 times, resulting in a remainder of 36.
The number 4 becomes the next digit in our result. 
Result so far: 1176.395604
If we take 364 away from 400, we end up with 36.
Since there are no more digits in the dividend, we add a zero to the remainder making it 360, and continue the process.

Step 13:
When dividing 360 by 91, we get 3 with a remainder of 87.
Write down 3 as next digit of the result. 
Result so far: 1176.3956043
Subtract 273 from 360 to get 87.
Since there are no more digits in the dividend, we add a zero to the remainder making it 870, and continue the process.

Advancing to step 14:
If we divide 870 by 91, we get 9 and a remainder of 51.
Record the quotient 9 as the next digit in the result. 
Result so far: 1176.39560439
Subtracting 819 from 870 leaves us with 51.
Since there are no more digits in the dividend, we add a zero to the remainder making it 510, and continue the process.

The final result is 1176.39560439 with a remainder of 5.1e-08.