Let's divide 686355 by 91
The aim is to understand the frequency of 91 in 686355.

Moving on to step 1:
91 goes into 6 0 times with a remainder of 6.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 6, we get 6.
Take the next digit (8) from the dividend and append it to 6, then repeat: 68 / 91

Step 2:
91 can be fit into 68 0 times, resulting in a remainder of 68.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 68 and we're left with 68.
Bring next digit (6) of the dividend behind the 68 and repeat the process: 686 / 91

Let's proceed to step 3:
If we divide 686 by 91, we get 7 and a remainder of 49.
Use 7 as the next digit of our solution. 
Result so far: 7.0
Subtracting 637 from 686 leaves us with 49.
Bring next digit (3) of the dividend behind the 49 and repeat the process: 493 / 91

Step 4:
If we divide 493 by 91, we get 5 and a remainder of 38.
Put 5 as the next digit of the answer. 
Result so far: 75.0
Subtract 455 from 493 to get 38.
Include the next digit (5) from the dividend after 38, then repeat: 385 / 91

On to step 5:
91 goes into 385 4 times with a remainder of 21.
Record the quotient 4 as the next digit in the result. 
Result so far: 754.0
The remainder is 21 after subtracting 364 from 385.
Append the next digit (5) from the dividend to 21 and continue with: 215 / 91

Moving on to step 6:
When dividing 215 by 91, we get 2 with a remainder of 33.
Put 2 as the next digit of the answer. 
Result so far: 7542.0
If we subtract 182 from 215, we get 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 7:
When dividing 330 by 91, we get 3 with a remainder of 57.
Record the quotient 3 as the next digit in the result. 
Result so far: 7542.3
Subtracting 273 from 330 leaves us 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.

Let's proceed to step 8:
91 can be fit into 570 6 times, resulting in a remainder of 24.
Write down 6 as next digit of the result. 
Result so far: 7542.36
If we subtract 546 from 570, we get 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Step 9:
The number 91 fits into 240 2 times, leaving a remainder of 58.
Put 2 as the next digit of the answer. 
Result so far: 7542.362
If we take 182 away from 240, we end up with 58.
Since there are no more digits in the dividend, we add a zero to the remainder making it 580, and continue the process.

On to step 10:
91 goes into 580 6 times with a remainder of 34.
The number 6 becomes the next digit in our result. 
Result so far: 7542.3626
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.

Let's proceed to step 11:
340 divided by 91 is 3 with a remainder of 67.
The number 3 becomes the next digit in our result. 
Result so far: 7542.36263
Deduct 273 from 340 and we're left 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.

Advancing to step 12:
670 divided by 91 is 7 with a remainder of 33.
The next digit of our result is 7. 
Result so far: 7542.362637
The remainder is 33 after subtracting 637 from 670.
Since there are no more digits in the dividend, we add a zero to the remainder making it 330, and continue the process.

Advancing to step 13:
When dividing 330 by 91, we get 3 with a remainder of 57.
The number 3 becomes the next digit in our result. 
Result so far: 7542.3626373
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.

On to step 14:
When dividing 570 by 91, we get 6 with a remainder of 24.
Write down 6 as next digit of the result. 
Result so far: 7542.36263736
If we subtract 546 from 570, we get 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

After the division, we end up with 7542.36263736 and a remainder of 2.4e-08.