270322 divided by 91 
The aim is to understand the frequency of 91 in 270322.

On to step 1:
91 goes into 2 0 times with a remainder of 2.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 2, we end up with 2.
Include the next digit (7) from the dividend after 2, then repeat: 27 / 91

Let's proceed to step 2:
27 divided by 91 is 0 with a remainder of 27.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 27, we end up with 27.
Grab the next digit (0) from the dividend, add it to 27, then carry on: 270 / 91

Advancing to step 3:
91 goes into 270 2 times with a remainder of 88.
The number 2 becomes the next digit in our result. 
Result so far: 2.0
If we subtract 182 from 270, we get 88.
Bring next digit (3) of the dividend behind the 88 and repeat the process: 883 / 91

Going ahead to step 4:
91 can be fit into 883 9 times, resulting in a remainder of 64.
Write down 9 as next digit of the result. 
Result so far: 29.0
If we take 819 away from 883, we end up with 64.
Take the next digit (2) from the dividend and append it to 64, then repeat: 642 / 91

On to step 5:
When dividing 642 by 91, we get 7 with a remainder of 5.
The number 7 becomes the next digit in our result. 
Result so far: 297.0
Subtract 637 from 642 to get 5.
Take the next digit (2) from the dividend and append it to 5, then repeat: 52 / 91

Going ahead to step 6:
When dividing 52 by 91, we get 0 with a remainder of 52.
The next digit of our result is 0. 
Result so far: 2970.0
Subtract 0 from 52 to get 52.
Since there are no more digits in the dividend, we add a zero to the remainder making it 520, and continue the process.

Step 7:
91 can be fit into 520 5 times, resulting in a remainder of 65.
Write down 5 as next digit of the result. 
Result so far: 2970.5
Deduct 455 from 520 and we're left with 65.
Since there are no more digits in the dividend, we add a zero to the remainder making it 650, and continue the process.

Moving on to step 8:
91 can be fit into 650 7 times, resulting in a remainder of 13.
The number 7 becomes the next digit in our result. 
Result so far: 2970.57
Subtract 637 from 650 to get 13.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

On to step 9:
130 divided by 91 is 1 with a remainder of 39.
The next digit of our result is 1. 
Result so far: 2970.571
Deduct 91 from 130 and we're left with 39.
Since there are no more digits in the dividend, we add a zero to the remainder making it 390, and continue the process.

Let's proceed to step 10:
If we divide 390 by 91, we get 4 and a remainder of 26.
Use 4 as the next digit of our solution. 
Result so far: 2970.5714
Subtract 364 from 390 to get 26.
Since there are no more digits in the dividend, we add a zero to the remainder making it 260, and continue the process.

Going ahead to step 11:
The number 91 fits into 260 2 times, leaving a remainder of 78.
Put 2 as the next digit of the answer. 
Result so far: 2970.57142
Deduct 182 from 260 and we're left with 78.
Since there are no more digits in the dividend, we add a zero to the remainder making it 780, and continue the process.

Step 12:
780 divided by 91 is 8 with a remainder of 52.
Write down 8 as next digit of the result. 
Result so far: 2970.571428
Deduct 728 from 780 and we're left with 52.
Since there are no more digits in the dividend, we add a zero to the remainder making it 520, and continue the process.

Step 13:
520 divided by 91 is 5 with a remainder of 65.
The next digit of our result is 5. 
Result so far: 2970.5714285
Deduct 455 from 520 and we're left with 65.
Since there are no more digits in the dividend, we add a zero to the remainder making it 650, and continue the process.

Moving on to step 14:
The number 91 fits into 650 7 times, leaving a remainder of 13.
Use 7 as the next digit of our solution. 
Result so far: 2970.57142857
If we subtract 637 from 650, we get 13.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

After the division, we end up with 2970.57142857 and a remainder of 1.3e-08.