We look at the division of 179276 by 91 
The aim is to understand the frequency of 91 in 179276.

On to step 1:
91 can be fit into 1 0 times, resulting in a remainder of 1.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 1 after subtracting 0 from 1.
Grab the next digit (7) from the dividend, add it to 1, then carry on: 17 / 91

Let's proceed to step 2:
91 goes into 17 0 times with a remainder of 17.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 17 after subtracting 0 from 17.
Include the next digit (9) from the dividend after 17, then repeat: 179 / 91

Going ahead to step 3:
179 divided by 91 is 1 with a remainder of 88.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
Deduct 91 from 179 and we're left with 88.
Fetch the next digit (2) from the dividend, attach it to 88 and continue: 882 / 91

Let's proceed to step 4:
If we divide 882 by 91, we get 9 and a remainder of 63.
The next digit of our result is 9. 
Result so far: 19.0
Deduct 819 from 882 and we're left with 63.
Grab the next digit (7) from the dividend, add it to 63, then carry on: 637 / 91

Advancing to step 5:
91 can be fit into 637 7 times, resulting in a remainder of 0.
Put 7 as the next digit of the answer. 
Result so far: 197.0
Deduct 637 from 637 and we're left with 0.
Append the next digit (6) from the dividend to 0 and continue with: 6 / 91

On to step 6:
91 goes into 6 0 times with a remainder of 6.
The next digit of our result is 0. 
Result so far: 1970.0
The remainder is 6 after subtracting 0 from 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Moving on to step 7:
91 can be fit into 60 0 times, resulting in a remainder of 60.
Record the quotient 0 as the next digit in the result. 
Result so far: 1970.0
If we take 0 away from 60, we end up with 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Going ahead to step 8:
The number 91 fits into 600 6 times, leaving a remainder of 54.
Put 6 as the next digit of the answer. 
Result so far: 1970.06
Subtract 546 from 600 to get 54.
Since there are no more digits in the dividend, we add a zero to the remainder making it 540, and continue the process.

Moving on to step 9:
If we divide 540 by 91, we get 5 and a remainder of 85.
Record the quotient 5 as the next digit in the result. 
Result so far: 1970.065
Subtracting 455 from 540 leaves us with 85.
Since there are no more digits in the dividend, we add a zero to the remainder making it 850, and continue the process.

Step 10:
The number 91 fits into 850 9 times, leaving a remainder of 31.
Put 9 as the next digit of the answer. 
Result so far: 1970.0659
If we take 819 away from 850, we end up with 31.
Since there are no more digits in the dividend, we add a zero to the remainder making it 310, and continue the process.

Step 11:
91 can be fit into 310 3 times, resulting in a remainder of 37.
Write down 3 as next digit of the result. 
Result so far: 1970.06593
Subtracting 273 from 310 leaves us with 37.
Since there are no more digits in the dividend, we add a zero to the remainder making it 370, and continue the process.

Going ahead to step 12:
If we divide 370 by 91, we get 4 and a remainder of 6.
Write down 4 as next digit of the result. 
Result so far: 1970.065934
Deduct 364 from 370 and we're left with 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Advancing to step 13:
When dividing 60 by 91, we get 0 with a remainder of 60.
Use 0 as the next digit of our solution. 
Result so far: 1970.065934
If we take 0 away from 60, we end up with 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Advancing to step 14:
When dividing 600 by 91, we get 6 with a remainder of 54.
Write down 6 as next digit of the result. 
Result so far: 1970.06593406
The remainder is 54 after subtracting 546 from 600.
Since there are no more digits in the dividend, we add a zero to the remainder making it 540, and continue the process.

The quotient of the division is 1970.06593406, and the remainder is 5.4e-08.