We look at the division of 91464 by 83 
The aim is to understand the frequency of 83 in 91464.

On to step 1:
The number 83 fits into 9 0 times, leaving a remainder of 9.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 9, we get 9.
Bring next digit (1) of the dividend behind the 9 and repeat the process: 91 / 83

On to step 2:
83 can be fit into 91 1 times, resulting in a remainder of 8.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
Subtracting 83 from 91 leaves us with 8.
Grab the next digit (4) from the dividend, add it to 8, then carry on: 84 / 83

Going ahead to step 3:
The number 83 fits into 84 1 times, leaving a remainder of 1.
The next digit of our result is 1. 
Result so far: 11.0
If we take 83 away from 84, we end up with 1.
Grab the next digit (6) from the dividend, add it to 1, then carry on: 16 / 83

Going ahead to step 4:
If we divide 16 by 83, we get 0 and a remainder of 16.
Use 0 as the next digit of our solution. 
Result so far: 110.0
If we subtract 0 from 16, we get 16.
Append the next digit (4) from the dividend to 16 and continue with: 164 / 83

Step 5:
When dividing 164 by 83, we get 1 with a remainder of 81.
The next digit of our result is 1. 
Result so far: 1101.0
Deduct 83 from 164 and we're left with 81.
Since there are no more digits in the dividend, we add a zero to the remainder making it 810, and continue the process.

Advancing to step 6:
83 can be fit into 810 9 times, resulting in a remainder of 63.
Record the quotient 9 as the next digit in the result. 
Result so far: 1101.9
If we take 747 away from 810, 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.

On to step 7:
630 divided by 83 is 7 with a remainder of 49.
Write down 7 as next digit of the result. 
Result so far: 1101.97
Subtract 581 from 630 to get 49.
Since there are no more digits in the dividend, we add a zero to the remainder making it 490, and continue the process.

Advancing to step 8:
83 can be fit into 490 5 times, resulting in a remainder of 75.
Write down 5 as next digit of the result. 
Result so far: 1101.975
Subtract 415 from 490 to get 75.
Since there are no more digits in the dividend, we add a zero to the remainder making it 750, and continue the process.

Let's proceed to step 9:
The number 83 fits into 750 9 times, leaving a remainder of 3.
The next digit of our result is 9. 
Result so far: 1101.9759
If we subtract 747 from 750, we get 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Moving on to step 10:
When dividing 30 by 83, we get 0 with a remainder of 30.
Put 0 as the next digit of the answer. 
Result so far: 1101.9759
If we subtract 0 from 30, we get 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

On to step 11:
If we divide 300 by 83, we get 3 and a remainder of 51.
The next digit of our result is 3. 
Result so far: 1101.975903
If we take 249 away from 300, 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.

On to step 12:
83 goes into 510 6 times with a remainder of 12.
Put 6 as the next digit of the answer. 
Result so far: 1101.9759036
If we take 498 away from 510, we end up with 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Step 13:
83 can be fit into 120 1 times, resulting in a remainder of 37.
Put 1 as the next digit of the answer. 
Result so far: 1101.97590361
The remainder is 37 after subtracting 83 from 120.
Since there are no more digits in the dividend, we add a zero to the remainder making it 370, and continue the process.

Our division results in 1101.97590361 with a remaining 3.7e-08.