We look at the division of 267948 by 91 
The aim is to understand the frequency of 91 in 267948.

Let's proceed to step 1:
When dividing 2 by 91, we get 0 with a remainder of 2.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 2 and we're left with 2.
Grab the next digit (6) from the dividend, add it to 2, then carry on: 26 / 91

Let's proceed to step 2:
91 goes into 26 0 times with a remainder of 26.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 26 to get 26.
Take the next digit (7) from the dividend and append it to 26, then repeat: 267 / 91

Moving on to step 3:
When dividing 267 by 91, we get 2 with a remainder of 85.
The next digit of our result is 2. 
Result so far: 2.0
The remainder is 85 after subtracting 182 from 267.
Include the next digit (9) from the dividend after 85, then repeat: 859 / 91

Advancing to step 4:
91 can be fit into 859 9 times, resulting in a remainder of 40.
The next digit of our result is 9. 
Result so far: 29.0
Subtracting 819 from 859 leaves us with 40.
Take the next digit (4) from the dividend and append it to 40, then repeat: 404 / 91

Going ahead to step 5:
91 can be fit into 404 4 times, resulting in a remainder of 40.
Write down 4 as next digit of the result. 
Result so far: 294.0
If we subtract 364 from 404, we get 40.
Fetch the next digit (8) from the dividend, attach it to 40 and continue: 408 / 91

On to step 6:
If we divide 408 by 91, we get 4 and a remainder of 44.
Put 4 as the next digit of the answer. 
Result so far: 2944.0
The remainder is 44 after subtracting 364 from 408.
Since there are no more digits in the dividend, we add a zero to the remainder making it 440, and continue the process.

On to step 7:
91 can be fit into 440 4 times, resulting in a remainder of 76.
The next digit of our result is 4. 
Result so far: 2944.4
The remainder is 76 after subtracting 364 from 440.
Since there are no more digits in the dividend, we add a zero to the remainder making it 760, and continue the process.

Going ahead to step 8:
If we divide 760 by 91, we get 8 and a remainder of 32.
The next digit of our result is 8. 
Result so far: 2944.48
Subtract 728 from 760 to get 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

Let's proceed to step 9:
91 goes into 320 3 times with a remainder of 47.
Put 3 as the next digit of the answer. 
Result so far: 2944.483
The remainder is 47 after subtracting 273 from 320.
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 10:
If we divide 470 by 91, we get 5 and a remainder of 15.
The next digit of our result is 5. 
Result so far: 2944.4835
If we take 455 away from 470, we end up with 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

On to step 11:
91 can be fit into 150 1 times, resulting in a remainder of 59.
Put 1 as the next digit of the answer. 
Result so far: 2944.48351
Subtracting 91 from 150 leaves us with 59.
Since there are no more digits in the dividend, we add a zero to the remainder making it 590, and continue the process.

On to step 12:
When dividing 590 by 91, we get 6 with a remainder of 44.
Use 6 as the next digit of our solution. 
Result so far: 2944.483516
Deduct 546 from 590 and we're left with 44.
Since there are no more digits in the dividend, we add a zero to the remainder making it 440, and continue the process.

On to step 13:
When dividing 440 by 91, we get 4 with a remainder of 76.
The next digit of our result is 4. 
Result so far: 2944.4835164
Deduct 364 from 440 and we're left with 76.
Since there are no more digits in the dividend, we add a zero to the remainder making it 760, and continue the process.

Step 14:
If we divide 760 by 91, we get 8 and a remainder of 32.
Use 8 as the next digit of our solution. 
Result so far: 2944.48351648
Deduct 728 from 760 and we're left with 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

The final result is 2944.48351648 with a remainder of 3.2e-08.