We look at the division of 496129 by 91 
The aim is to understand the frequency of 91 in 496129.

Going ahead to step 1:
91 can be fit into 4 0 times, resulting in a remainder of 4.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 4, we get 4.
Take the next digit (9) from the dividend and append it to 4, then repeat: 49 / 91

Step 2:
The number 91 fits into 49 0 times, leaving a remainder of 49.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 49 to get 49.
Bring next digit (6) of the dividend behind the 49 and repeat the process: 496 / 91

Let's proceed to step 3:
91 goes into 496 5 times with a remainder of 41.
The next digit of our result is 5. 
Result so far: 5.0
If we subtract 455 from 496, we get 41.
Include the next digit (1) from the dividend after 41, then repeat: 411 / 91

Going ahead to step 4:
91 can be fit into 411 4 times, resulting in a remainder of 47.
Record the quotient 4 as the next digit in the result. 
Result so far: 54.0
If we take 364 away from 411, we end up with 47.
Grab the next digit (2) from the dividend, add it to 47, then carry on: 472 / 91

Step 5:
The number 91 fits into 472 5 times, leaving a remainder of 17.
The next digit of our result is 5. 
Result so far: 545.0
If we take 455 away from 472, we end up with 17.
Bring next digit (9) of the dividend behind the 17 and repeat the process: 179 / 91

Advancing to step 6:
When dividing 179 by 91, we get 1 with a remainder of 88.
Write down 1 as next digit of the result. 
Result so far: 5451.0
If we subtract 91 from 179, we get 88.
Since there are no more digits in the dividend, we add a zero to the remainder making it 880, and continue the process.

Advancing to step 7:
When dividing 880 by 91, we get 9 with a remainder of 61.
Put 9 as the next digit of the answer. 
Result so far: 5451.9
If we take 819 away from 880, we end up with 61.
Since there are no more digits in the dividend, we add a zero to the remainder making it 610, and continue the process.

On to step 8:
91 can be fit into 610 6 times, resulting in a remainder of 64.
The number 6 becomes the next digit in our result. 
Result so far: 5451.96
The remainder is 64 after subtracting 546 from 610.
Since there are no more digits in the dividend, we add a zero to the remainder making it 640, and continue the process.

Step 9:
640 divided by 91 is 7 with a remainder of 3.
Record the quotient 7 as the next digit in the result. 
Result so far: 5451.967
If we subtract 637 from 640, we get 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Advancing to step 10:
91 goes into 30 0 times with a remainder of 30.
The next digit of our result is 0. 
Result so far: 5451.967
Subtract 0 from 30 to get 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

On to step 11:
If we divide 300 by 91, we get 3 and a remainder of 27.
The next digit of our result is 3. 
Result so far: 5451.96703
If we subtract 273 from 300, we get 27.
Since there are no more digits in the dividend, we add a zero to the remainder making it 270, and continue the process.

On to step 12:
When dividing 270 by 91, we get 2 with a remainder of 88.
Record the quotient 2 as the next digit in the result. 
Result so far: 5451.967032
Subtracting 182 from 270 leaves us with 88.
Since there are no more digits in the dividend, we add a zero to the remainder making it 880, and continue the process.

On to step 13:
If we divide 880 by 91, we get 9 and a remainder of 61.
Record the quotient 9 as the next digit in the result. 
Result so far: 5451.9670329
Subtract 819 from 880 to get 61.
Since there are no more digits in the dividend, we add a zero to the remainder making it 610, and continue the process.

Moving on to step 14:
91 goes into 610 6 times with a remainder of 64.
Write down 6 as next digit of the result. 
Result so far: 5451.96703296
Subtract 546 from 610 to get 64.
Since there are no more digits in the dividend, we add a zero to the remainder making it 640, and continue the process.

The final outcome is 5451.96703296, with a leftover of 6.4e-08.