We divide 14909905 by 91
The aim is to understand the frequency of 91 in 14909905.

Step 1:
When dividing 1 by 91, we get 0 with a remainder of 1.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 1, we end up with 1.
Fetch the next digit (4) from the dividend, attach it to 1 and continue: 14 / 91

Advancing to step 2:
91 goes into 14 0 times with a remainder of 14.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 14 leaves us with 14.
Include the next digit (9) from the dividend after 14, then repeat: 149 / 91

Let's proceed to step 3:
91 goes into 149 1 times with a remainder of 58.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
If we subtract 91 from 149, we get 58.
Append the next digit (0) from the dividend to 58 and continue with: 580 / 91

On to step 4:
91 can be fit into 580 6 times, resulting in a remainder of 34.
Use 6 as the next digit of our solution. 
Result so far: 16.0
Subtracting 546 from 580 leaves us with 34.
Fetch the next digit (9) from the dividend, attach it to 34 and continue: 349 / 91

Moving on to step 5:
When dividing 349 by 91, we get 3 with a remainder of 76.
Record the quotient 3 as the next digit in the result. 
Result so far: 163.0
Deduct 273 from 349 and we're left with 76.
Fetch the next digit (9) from the dividend, attach it to 76 and continue: 769 / 91

Let's proceed to step 6:
91 goes into 769 8 times with a remainder of 41.
Use 8 as the next digit of our solution. 
Result so far: 1638.0
Deduct 728 from 769 and we're left with 41.
Include the next digit (0) from the dividend after 41, then repeat: 410 / 91

Step 7:
91 goes into 410 4 times with a remainder of 46.
The number 4 becomes the next digit in our result. 
Result so far: 16384.0
If we subtract 364 from 410, we get 46.
Include the next digit (5) from the dividend after 46, then repeat: 465 / 91

On to step 8:
91 goes into 465 5 times with a remainder of 10.
Record the quotient 5 as the next digit in the result. 
Result so far: 163845.0
If we take 455 away from 465, we end up with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Step 9:
When dividing 100 by 91, we get 1 with a remainder of 9.
The number 1 becomes the next digit in our result. 
Result so far: 163845.1
If we subtract 91 from 100, we get 9.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

Moving on to step 10:
90 divided by 91 is 0 with a remainder of 90.
Write down 0 as next digit of the result. 
Result so far: 163845.1
If we subtract 0 from 90, we get 90.
Since there are no more digits in the dividend, we add a zero to the remainder making it 900, and continue the process.

Advancing to step 11:
If we divide 900 by 91, we get 9 and a remainder of 81.
The number 9 becomes the next digit in our result. 
Result so far: 163845.109
If we subtract 819 from 900, we get 81.
Since there are no more digits in the dividend, we add a zero to the remainder making it 810, and continue the process.

On to step 12:
91 goes into 810 8 times with a remainder of 82.
The next digit of our result is 8. 
Result so far: 163845.1098
If we subtract 728 from 810, we get 82.
Since there are no more digits in the dividend, we add a zero to the remainder making it 820, and continue the process.

On to step 13:
91 can be fit into 820 9 times, resulting in a remainder of 1.
Write down 9 as next digit of the result. 
Result so far: 163845.10989
If we take 819 away from 820, we end up with 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Going ahead to step 14:
91 goes into 10 0 times with a remainder of 10.
The number 0 becomes the next digit in our result. 
Result so far: 163845.10989
Deduct 0 from 10 and we're left with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Step 15:
100 divided by 91 is 1 with a remainder of 9.
Put 1 as the next digit of the answer. 
Result so far: 163845.1098901
Deduct 91 from 100 and we're left with 9.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

Let's proceed to step 16:
If we divide 90 by 91, we get 0 and a remainder of 90.
Use 0 as the next digit of our solution. 
Result so far: 163845.1098901
Subtract 0 from 90 to get 90.
Since there are no more digits in the dividend, we add a zero to the remainder making it 900, and continue the process.

The quotient of the division is 163845.1098901, and the remainder is 9e-08.