We're dividing 702125 by 83 
The aim is to understand the frequency of 83 in 702125.

On to step 1:
The number 83 fits into 7 0 times, leaving a remainder of 7.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 7, we get 7.
Fetch the next digit (0) from the dividend, attach it to 7 and continue: 70 / 83

Moving on to step 2:
If we divide 70 by 83, we get 0 and a remainder of 70.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 70, we end up with 70.
Bring next digit (2) of the dividend behind the 70 and repeat the process: 702 / 83

Step 3:
83 can be fit into 702 8 times, resulting in a remainder of 38.
Put 8 as the next digit of the answer. 
Result so far: 8.0
Subtracting 664 from 702 leaves us with 38.
Grab the next digit (1) from the dividend, add it to 38, then carry on: 381 / 83

Step 4:
83 goes into 381 4 times with a remainder of 49.
Use 4 as the next digit of our solution. 
Result so far: 84.0
If we take 332 away from 381, we end up with 49.
Grab the next digit (2) from the dividend, add it to 49, then carry on: 492 / 83

On to step 5:
83 can be fit into 492 5 times, resulting in a remainder of 77.
Use 5 as the next digit of our solution. 
Result so far: 845.0
Deduct 415 from 492 and we're left with 77.
Include the next digit (5) from the dividend after 77, then repeat: 775 / 83

On to step 6:
83 goes into 775 9 times with a remainder of 28.
Record the quotient 9 as the next digit in the result. 
Result so far: 8459.0
Subtract 747 from 775 to get 28.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

On to step 7:
83 goes into 280 3 times with a remainder of 31.
Put 3 as the next digit of the answer. 
Result so far: 8459.3
The remainder is 31 after subtracting 249 from 280.
Since there are no more digits in the dividend, we add a zero to the remainder making it 310, and continue the process.

Step 8:
310 divided by 83 is 3 with a remainder of 61.
The number 3 becomes the next digit in our result. 
Result so far: 8459.33
Deduct 249 from 310 and we're left with 61.
Since there are no more digits in the dividend, we add a zero to the remainder making it 610, and continue the process.

Our division results in 8459.33 with a remaining 0.061.