450426 divided by 91 
The aim is to understand the frequency of 91 in 450426.

Going ahead to step 1:
4 divided by 91 is 0 with a remainder of 4.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 4 leaves us with 4.
Grab the next digit (5) from the dividend, add it to 4, then carry on: 45 / 91

Let's proceed to step 2:
45 divided by 91 is 0 with a remainder of 45.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 45 and we're left with 45.
Bring next digit (0) of the dividend behind the 45 and repeat the process: 450 / 91

On to step 3:
When dividing 450 by 91, we get 4 with a remainder of 86.
Put 4 as the next digit of the answer. 
Result so far: 4.0
The remainder is 86 after subtracting 364 from 450.
Include the next digit (4) from the dividend after 86, then repeat: 864 / 91

Advancing to step 4:
If we divide 864 by 91, we get 9 and a remainder of 45.
The next digit of our result is 9. 
Result so far: 49.0
Subtract 819 from 864 to get 45.
Include the next digit (2) from the dividend after 45, then repeat: 452 / 91

On to step 5:
452 divided by 91 is 4 with a remainder of 88.
Put 4 as the next digit of the answer. 
Result so far: 494.0
Subtract 364 from 452 to get 88.
Grab the next digit (6) from the dividend, add it to 88, then carry on: 886 / 91

Let's proceed to step 6:
886 divided by 91 is 9 with a remainder of 67.
Put 9 as the next digit of the answer. 
Result so far: 4949.0
Subtracting 819 from 886 leaves us with 67.
Since there are no more digits in the dividend, we add a zero to the remainder making it 670, and continue the process.

On to step 7:
If we divide 670 by 91, we get 7 and a remainder of 33.
Record the quotient 7 as the next digit in the result. 
Result so far: 4949.7
Deduct 637 from 670 and we're left with 33.
Since there are no more digits in the dividend, we add a zero to the remainder making it 330, and continue the process.

Going ahead to step 8:
The number 91 fits into 330 3 times, leaving a remainder of 57.
Write down 3 as next digit of the result. 
Result so far: 4949.73
Subtract 273 from 330 to get 57.
Since there are no more digits in the dividend, we add a zero to the remainder making it 570, and continue the process.

Moving on to step 9:
570 divided by 91 is 6 with a remainder of 24.
The next digit of our result is 6. 
Result so far: 4949.736
If we take 546 away from 570, we end up with 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Moving on to step 10:
91 can be fit into 240 2 times, resulting in a remainder of 58.
Use 2 as the next digit of our solution. 
Result so far: 4949.7362
The remainder is 58 after subtracting 182 from 240.
Since there are no more digits in the dividend, we add a zero to the remainder making it 580, and continue the process.

Going ahead to step 11:
When dividing 580 by 91, we get 6 with a remainder of 34.
The number 6 becomes the next digit in our result. 
Result so far: 4949.73626
Subtract 546 from 580 to get 34.
Since there are no more digits in the dividend, we add a zero to the remainder making it 340, and continue the process.

Advancing to step 12:
91 can be fit into 340 3 times, resulting in a remainder of 67.
Record the quotient 3 as the next digit in the result. 
Result so far: 4949.736263
Subtracting 273 from 340 leaves us with 67.
Since there are no more digits in the dividend, we add a zero to the remainder making it 670, and continue the process.

Step 13:
When dividing 670 by 91, we get 7 with a remainder of 33.
Use 7 as the next digit of our solution. 
Result so far: 4949.7362637
Deduct 637 from 670 and we're left with 33.
Since there are no more digits in the dividend, we add a zero to the remainder making it 330, and continue the process.

Step 14:
91 can be fit into 330 3 times, resulting in a remainder of 57.
Put 3 as the next digit of the answer. 
Result so far: 4949.73626373
Deduct 273 from 330 and we're left with 57.
Since there are no more digits in the dividend, we add a zero to the remainder making it 570, and continue the process.

Our division results in 4949.73626373 with a remaining 5.7e-08.