Let's divide 859108 by 91
The aim is to understand the frequency of 91 in 859108.

Step 1:
The number 91 fits into 8 0 times, leaving a remainder of 8.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 8 after subtracting 0 from 8.
Fetch the next digit (5) from the dividend, attach it to 8 and continue: 85 / 91

Moving on to step 2:
When dividing 85 by 91, we get 0 with a remainder of 85.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 85, we end up with 85.
Fetch the next digit (9) from the dividend, attach it to 85 and continue: 859 / 91

Going ahead to step 3:
859 divided by 91 is 9 with a remainder of 40.
Record the quotient 9 as the next digit in the result. 
Result so far: 9.0
Subtract 819 from 859 to get 40.
Bring next digit (1) of the dividend behind the 40 and repeat the process: 401 / 91

Going ahead to step 4:
The number 91 fits into 401 4 times, leaving a remainder of 37.
Use 4 as the next digit of our solution. 
Result so far: 94.0
Subtracting 364 from 401 leaves us with 37.
Append the next digit (0) from the dividend to 37 and continue with: 370 / 91

Step 5:
91 goes into 370 4 times with a remainder of 6.
Record the quotient 4 as the next digit in the result. 
Result so far: 944.0
Deduct 364 from 370 and we're left with 6.
Take the next digit (8) from the dividend and append it to 6, then repeat: 68 / 91

Advancing to step 6:
When dividing 68 by 91, we get 0 with a remainder of 68.
Use 0 as the next digit of our solution. 
Result so far: 9440.0
Subtract 0 from 68 to get 68.
Since there are no more digits in the dividend, we add a zero to the remainder making it 680, and continue the process.

On to step 7:
91 goes into 680 7 times with a remainder of 43.
The next digit of our result is 7. 
Result so far: 9440.7
Subtract 637 from 680 to get 43.
Since there are no more digits in the dividend, we add a zero to the remainder making it 430, and continue the process.

Advancing to step 8:
When dividing 430 by 91, we get 4 with a remainder of 66.
Write down 4 as next digit of the result. 
Result so far: 9440.74
If we take 364 away from 430, we end up with 66.
Since there are no more digits in the dividend, we add a zero to the remainder making it 660, and continue the process.

Step 9:
If we divide 660 by 91, we get 7 and a remainder of 23.
Put 7 as the next digit of the answer. 
Result so far: 9440.747
The remainder is 23 after subtracting 637 from 660.
Since there are no more digits in the dividend, we add a zero to the remainder making it 230, and continue the process.

On to step 10:
When dividing 230 by 91, we get 2 with a remainder of 48.
Record the quotient 2 as the next digit in the result. 
Result so far: 9440.7472
The remainder is 48 after subtracting 182 from 230.
Since there are no more digits in the dividend, we add a zero to the remainder making it 480, and continue the process.

Step 11:
91 can be fit into 480 5 times, resulting in a remainder of 25.
Record the quotient 5 as the next digit in the result. 
Result so far: 9440.74725
If we subtract 455 from 480, we get 25.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

On to step 12:
If we divide 250 by 91, we get 2 and a remainder of 68.
Use 2 as the next digit of our solution. 
Result so far: 9440.747252
If we take 182 away from 250, we end up with 68.
Since there are no more digits in the dividend, we add a zero to the remainder making it 680, and continue the process.

On to step 13:
680 divided by 91 is 7 with a remainder of 43.
Record the quotient 7 as the next digit in the result. 
Result so far: 9440.7472527
Deduct 637 from 680 and we're left with 43.
Since there are no more digits in the dividend, we add a zero to the remainder making it 430, and continue the process.

Going ahead to step 14:
430 divided by 91 is 4 with a remainder of 66.
The number 4 becomes the next digit in our result. 
Result so far: 9440.74725274
The remainder is 66 after subtracting 364 from 430.
Since there are no more digits in the dividend, we add a zero to the remainder making it 660, and continue the process.

The final result is 9440.74725274 with a remainder of 6.6e-08.