We're dividing 402503 by 83 
The aim is to understand the frequency of 83 in 402503.

On to step 1:
83 goes into 4 0 times with a remainder of 4.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 4 after subtracting 0 from 4.
Append the next digit (0) from the dividend to 4 and continue with: 40 / 83

Advancing to step 2:
40 divided by 83 is 0 with a remainder of 40.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 40, we end up with 40.
Bring next digit (2) of the dividend behind the 40 and repeat the process: 402 / 83

Let's proceed to step 3:
83 goes into 402 4 times with a remainder of 70.
The number 4 becomes the next digit in our result. 
Result so far: 4.0
The remainder is 70 after subtracting 332 from 402.
Append the next digit (5) from the dividend to 70 and continue with: 705 / 83

Let's proceed to step 4:
83 can be fit into 705 8 times, resulting in a remainder of 41.
Put 8 as the next digit of the answer. 
Result so far: 48.0
Subtracting 664 from 705 leaves us with 41.
Include the next digit (0) from the dividend after 41, then repeat: 410 / 83

Step 5:
410 divided by 83 is 4 with a remainder of 78.
Write down 4 as next digit of the result. 
Result so far: 484.0
Subtracting 332 from 410 leaves us with 78.
Append the next digit (3) from the dividend to 78 and continue with: 783 / 83

Going ahead to step 6:
783 divided by 83 is 9 with a remainder of 36.
The number 9 becomes the next digit in our result. 
Result so far: 4849.0
If we take 747 away from 783, we end up with 36.
Since there are no more digits in the dividend, we add a zero to the remainder making it 360, and continue the process.

Step 7:
The number 83 fits into 360 4 times, leaving a remainder of 28.
Put 4 as the next digit of the answer. 
Result so far: 4849.4
If we subtract 332 from 360, we 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.

Advancing to step 8:
The number 83 fits into 280 3 times, leaving a remainder of 31.
Write down 3 as next digit of the result. 
Result so far: 4849.43
Deduct 249 from 280 and we're left with 31.
Since there are no more digits in the dividend, we add a zero to the remainder making it 310, and continue the process.

Step 9:
83 goes into 310 3 times with a remainder of 61.
The next digit of our result is 3. 
Result so far: 4849.433
Subtract 249 from 310 to get 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 4849.433 with a remaining 0.0061.