We're dividing 170121 by 83 
The aim is to understand the frequency of 83 in 170121.

On to step 1:
83 goes into 1 0 times with a remainder of 1.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 1 to get 1.
Fetch the next digit (7) from the dividend, attach it to 1 and continue: 17 / 83

Let's proceed to step 2:
The number 83 fits into 17 0 times, leaving a remainder of 17.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 17 after subtracting 0 from 17.
Bring next digit (0) of the dividend behind the 17 and repeat the process: 170 / 83

Let's proceed to step 3:
83 goes into 170 2 times with a remainder of 4.
Record the quotient 2 as the next digit in the result. 
Result so far: 2.0
Subtracting 166 from 170 leaves us with 4.
Append the next digit (1) from the dividend to 4 and continue with: 41 / 83

Going ahead to step 4:
The number 83 fits into 41 0 times, leaving a remainder of 41.
Put 0 as the next digit of the answer. 
Result so far: 20.0
If we take 0 away from 41, we end up with 41.
Grab the next digit (2) from the dividend, add it to 41, then carry on: 412 / 83

Moving on to step 5:
If we divide 412 by 83, we get 4 and a remainder of 80.
Record the quotient 4 as the next digit in the result. 
Result so far: 204.0
Subtracting 332 from 412 leaves us with 80.
Include the next digit (1) from the dividend after 80, then repeat: 801 / 83

Going ahead to step 6:
83 can be fit into 801 9 times, resulting in a remainder of 54.
The next digit of our result is 9. 
Result so far: 2049.0
If we subtract 747 from 801, we get 54.
Since there are no more digits in the dividend, we add a zero to the remainder making it 540, and continue the process.

On to step 7:
If we divide 540 by 83, we get 6 and a remainder of 42.
Use 6 as the next digit of our solution. 
Result so far: 2049.6
If we take 498 away from 540, we end up with 42.
Since there are no more digits in the dividend, we add a zero to the remainder making it 420, and continue the process.

Moving on to step 8:
420 divided by 83 is 5 with a remainder of 5.
Record the quotient 5 as the next digit in the result. 
Result so far: 2049.65
Subtract 415 from 420 to get 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Let's proceed to step 9:
If we divide 50 by 83, we get 0 and a remainder of 50.
Use 0 as the next digit of our solution. 
Result so far: 2049.65
The remainder is 50 after subtracting 0 from 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Going ahead to step 10:
83 goes into 500 6 times with a remainder of 2.
The next digit of our result is 6. 
Result so far: 2049.6506
Deduct 498 from 500 and we're left with 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Advancing to step 11:
When dividing 20 by 83, we get 0 with a remainder of 20.
The next digit of our result is 0. 
Result so far: 2049.6506
Subtract 0 from 20 to get 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Advancing to step 12:
200 divided by 83 is 2 with a remainder of 34.
The next digit of our result is 2. 
Result so far: 2049.650602
Subtracting 166 from 200 leaves us with 34.
Since there are no more digits in the dividend, we add a zero to the remainder making it 340, and continue the process.

Going ahead to step 13:
When dividing 340 by 83, we get 4 with a remainder of 8.
Put 4 as the next digit of the answer. 
Result so far: 2049.6506024
Subtracting 332 from 340 leaves us with 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Step 14:
When dividing 80 by 83, we get 0 with a remainder of 80.
Record the quotient 0 as the next digit in the result. 
Result so far: 2049.6506024
Subtracting 0 from 80 leaves us with 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

The quotient of the division is 2049.6506024, and the remainder is 8e-08.