We look at the division of 962165 by 91 
The aim is to understand the frequency of 91 in 962165.

Let's proceed to step 1:
91 goes into 9 0 times with a remainder of 9.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 9, we end up with 9.
Fetch the next digit (6) from the dividend, attach it to 9 and continue: 96 / 91

On to step 2:
The number 91 fits into 96 1 times, leaving a remainder of 5.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
Subtracting 91 from 96 leaves us with 5.
Append the next digit (2) from the dividend to 5 and continue with: 52 / 91

Moving on to step 3:
When dividing 52 by 91, we get 0 with a remainder of 52.
The number 0 becomes the next digit in our result. 
Result so far: 10.0
Deduct 0 from 52 and we're left with 52.
Grab the next digit (1) from the dividend, add it to 52, then carry on: 521 / 91

On to step 4:
When dividing 521 by 91, we get 5 with a remainder of 66.
The next digit of our result is 5. 
Result so far: 105.0
If we take 455 away from 521, we end up with 66.
Grab the next digit (6) from the dividend, add it to 66, then carry on: 666 / 91

Going ahead to step 5:
If we divide 666 by 91, we get 7 and a remainder of 29.
Use 7 as the next digit of our solution. 
Result so far: 1057.0
Deduct 637 from 666 and we're left with 29.
Take the next digit (5) from the dividend and append it to 29, then repeat: 295 / 91

Step 6:
295 divided by 91 is 3 with a remainder of 22.
Use 3 as the next digit of our solution. 
Result so far: 10573.0
If we take 273 away from 295, we end up with 22.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

Moving on to step 7:
91 can be fit into 220 2 times, resulting in a remainder of 38.
Use 2 as the next digit of our solution. 
Result so far: 10573.2
Deduct 182 from 220 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.

Step 8:
When dividing 380 by 91, we get 4 with a remainder of 16.
Record the quotient 4 as the next digit in the result. 
Result so far: 10573.24
Subtract 364 from 380 to get 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

On to step 9:
When dividing 160 by 91, we get 1 with a remainder of 69.
Write down 1 as next digit of the result. 
Result so far: 10573.241
The remainder is 69 after subtracting 91 from 160.
Since there are no more digits in the dividend, we add a zero to the remainder making it 690, and continue the process.

Advancing to step 10:
The number 91 fits into 690 7 times, leaving a remainder of 53.
Put 7 as the next digit of the answer. 
Result so far: 10573.2417
Deduct 637 from 690 and we're left with 53.
Since there are no more digits in the dividend, we add a zero to the remainder making it 530, and continue the process.

Going ahead to step 11:
The number 91 fits into 530 5 times, leaving a remainder of 75.
The next digit of our result is 5. 
Result so far: 10573.24175
Subtracting 455 from 530 leaves us with 75.
Since there are no more digits in the dividend, we add a zero to the remainder making it 750, and continue the process.

On to step 12:
750 divided by 91 is 8 with a remainder of 22.
The next digit of our result is 8. 
Result so far: 10573.241758
Subtracting 728 from 750 leaves us with 22.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

Moving on to step 13:
If we divide 220 by 91, we get 2 and a remainder of 38.
Use 2 as the next digit of our solution. 
Result so far: 10573.2417582
If we take 182 away from 220, we end up 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.

On to step 14:
380 divided by 91 is 4 with a remainder of 16.
Write down 4 as next digit of the result. 
Result so far: 10573.24175824
Subtract 364 from 380 to get 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Our division results in 10573.24175824 with a remaining 1.6e-08.