We divide 345258 by 91
The aim is to understand the frequency of 91 in 345258.

Let's proceed to step 1:
3 divided by 91 is 0 with a remainder of 3.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 3 leaves us with 3.
Include the next digit (4) from the dividend after 3, then repeat: 34 / 91

Moving on to step 2:
If we divide 34 by 91, we get 0 and a remainder of 34.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 34, we end up with 34.
Take the next digit (5) from the dividend and append it to 34, then repeat: 345 / 91

Moving on to step 3:
When dividing 345 by 91, we get 3 with a remainder of 72.
The number 3 becomes the next digit in our result. 
Result so far: 3.0
Subtracting 273 from 345 leaves us with 72.
Take the next digit (2) from the dividend and append it to 72, then repeat: 722 / 91

Advancing to step 4:
722 divided by 91 is 7 with a remainder of 85.
The next digit of our result is 7. 
Result so far: 37.0
Deduct 637 from 722 and we're left with 85.
Bring next digit (5) of the dividend behind the 85 and repeat the process: 855 / 91

Step 5:
The number 91 fits into 855 9 times, leaving a remainder of 36.
The number 9 becomes the next digit in our result. 
Result so far: 379.0
If we subtract 819 from 855, we get 36.
Include the next digit (8) from the dividend after 36, then repeat: 368 / 91

Advancing to step 6:
91 can be fit into 368 4 times, resulting in a remainder of 4.
The next digit of our result is 4. 
Result so far: 3794.0
If we subtract 364 from 368, we get 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

On to step 7:
40 divided by 91 is 0 with a remainder of 40.
Put 0 as the next digit of the answer. 
Result so far: 3794.0
If we subtract 0 from 40, we get 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Moving on to step 8:
If we divide 400 by 91, we get 4 and a remainder of 36.
Use 4 as the next digit of our solution. 
Result so far: 3794.04
Subtracting 364 from 400 leaves us with 36.
Since there are no more digits in the dividend, we add a zero to the remainder making it 360, and continue the process.

On to step 9:
91 can be fit into 360 3 times, resulting in a remainder of 87.
The number 3 becomes the next digit in our result. 
Result so far: 3794.043
Subtracting 273 from 360 leaves us with 87.
Since there are no more digits in the dividend, we add a zero to the remainder making it 870, and continue the process.

Going ahead to step 10:
If we divide 870 by 91, we get 9 and a remainder of 51.
Use 9 as the next digit of our solution. 
Result so far: 3794.0439
If we take 819 away from 870, we end up with 51.
Since there are no more digits in the dividend, we add a zero to the remainder making it 510, and continue the process.

Advancing to step 11:
91 goes into 510 5 times with a remainder of 55.
Write down 5 as next digit of the result. 
Result so far: 3794.04395
Subtract 455 from 510 to get 55.
Since there are no more digits in the dividend, we add a zero to the remainder making it 550, and continue the process.

On to step 12:
The number 91 fits into 550 6 times, leaving a remainder of 4.
Put 6 as the next digit of the answer. 
Result so far: 3794.043956
The remainder is 4 after subtracting 546 from 550.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

On to step 13:
40 divided by 91 is 0 with a remainder of 40.
Put 0 as the next digit of the answer. 
Result so far: 3794.043956
If we take 0 away from 40, we end up with 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Advancing to step 14:
The number 91 fits into 400 4 times, leaving a remainder of 36.
The next digit of our result is 4. 
Result so far: 3794.04395604
Subtract 364 from 400 to get 36.
Since there are no more digits in the dividend, we add a zero to the remainder making it 360, and continue the process.

The quotient of the division is 3794.04395604, and the remainder is 3.6e-08.