Let's divide 863233 by 91
The aim is to understand the frequency of 91 in 863233.

On to step 1:
When dividing 8 by 91, we get 0 with a remainder of 8.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 8 to get 8.
Bring next digit (6) of the dividend behind the 8 and repeat the process: 86 / 91

Going ahead to step 2:
The number 91 fits into 86 0 times, leaving a remainder of 86.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 86, we end up with 86.
Include the next digit (3) from the dividend after 86, then repeat: 863 / 91

On to step 3:
91 can be fit into 863 9 times, resulting in a remainder of 44.
Put 9 as the next digit of the answer. 
Result so far: 9.0
Subtracting 819 from 863 leaves us with 44.
Fetch the next digit (2) from the dividend, attach it to 44 and continue: 442 / 91

Advancing to step 4:
The number 91 fits into 442 4 times, leaving a remainder of 78.
Record the quotient 4 as the next digit in the result. 
Result so far: 94.0
If we take 364 away from 442, we end up with 78.
Include the next digit (3) from the dividend after 78, then repeat: 783 / 91

Going ahead to step 5:
91 can be fit into 783 8 times, resulting in a remainder of 55.
Record the quotient 8 as the next digit in the result. 
Result so far: 948.0
If we take 728 away from 783, we end up with 55.
Include the next digit (3) from the dividend after 55, then repeat: 553 / 91

Step 6:
91 goes into 553 6 times with a remainder of 7.
Record the quotient 6 as the next digit in the result. 
Result so far: 9486.0
Subtract 546 from 553 to get 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

Step 7:
70 divided by 91 is 0 with a remainder of 70.
Put 0 as the next digit of the answer. 
Result so far: 9486.0
If we take 0 away from 70, we end up with 70.
Since there are no more digits in the dividend, we add a zero to the remainder making it 700, and continue the process.

Step 8:
700 divided by 91 is 7 with a remainder of 63.
The next digit of our result is 7. 
Result so far: 9486.07
Subtracting 637 from 700 leaves us with 63.
Since there are no more digits in the dividend, we add a zero to the remainder making it 630, and continue the process.

Advancing to step 9:
When dividing 630 by 91, we get 6 with a remainder of 84.
Record the quotient 6 as the next digit in the result. 
Result so far: 9486.076
Subtracting 546 from 630 leaves us with 84.
Since there are no more digits in the dividend, we add a zero to the remainder making it 840, and continue the process.

Step 10:
91 can be fit into 840 9 times, resulting in a remainder of 21.
Use 9 as the next digit of our solution. 
Result so far: 9486.0769
Deduct 819 from 840 and we're left with 21.
Since there are no more digits in the dividend, we add a zero to the remainder making it 210, and continue the process.

Let's proceed to step 11:
210 divided by 91 is 2 with a remainder of 28.
The number 2 becomes the next digit in our result. 
Result so far: 9486.07692
The remainder is 28 after subtracting 182 from 210.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

Step 12:
91 goes into 280 3 times with a remainder of 7.
The number 3 becomes the next digit in our result. 
Result so far: 9486.076923
Subtracting 273 from 280 leaves us with 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

Let's proceed to step 13:
70 divided by 91 is 0 with a remainder of 70.
Record the quotient 0 as the next digit in the result. 
Result so far: 9486.076923
Subtracting 0 from 70 leaves us with 70.
Since there are no more digits in the dividend, we add a zero to the remainder making it 700, and continue the process.

Let's proceed to step 14:
91 goes into 700 7 times with a remainder of 63.
Record the quotient 7 as the next digit in the result. 
Result so far: 9486.07692307
If we take 637 away from 700, we end up with 63.
Since there are no more digits in the dividend, we add a zero to the remainder making it 630, and continue the process.

The final result is 9486.07692307 with a remainder of 6.3e-08.