We look at the division of 394397 by 83 
The aim is to understand the frequency of 83 in 394397.

Moving on to step 1:
When dividing 3 by 83, we get 0 with a remainder of 3.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 3 after subtracting 0 from 3.
Bring next digit (9) of the dividend behind the 3 and repeat the process: 39 / 83

Let's proceed to step 2:
83 can be fit into 39 0 times, resulting in a remainder of 39.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 39 to get 39.
Take the next digit (4) from the dividend and append it to 39, then repeat: 394 / 83

Going ahead to step 3:
If we divide 394 by 83, we get 4 and a remainder of 62.
The number 4 becomes the next digit in our result. 
Result so far: 4.0
Deduct 332 from 394 and we're left with 62.
Fetch the next digit (3) from the dividend, attach it to 62 and continue: 623 / 83

On to step 4:
83 goes into 623 7 times with a remainder of 42.
The number 7 becomes the next digit in our result. 
Result so far: 47.0
If we subtract 581 from 623, we get 42.
Fetch the next digit (9) from the dividend, attach it to 42 and continue: 429 / 83

Advancing to step 5:
429 divided by 83 is 5 with a remainder of 14.
Record the quotient 5 as the next digit in the result. 
Result so far: 475.0
Subtracting 415 from 429 leaves us with 14.
Take the next digit (7) from the dividend and append it to 14, then repeat: 147 / 83

Moving on to step 6:
If we divide 147 by 83, we get 1 and a remainder of 64.
The next digit of our result is 1. 
Result so far: 4751.0
Deduct 83 from 147 and we're left with 64.
Since there are no more digits in the dividend, we add a zero to the remainder making it 640, and continue the process.

Step 7:
The number 83 fits into 640 7 times, leaving a remainder of 59.
The next digit of our result is 7. 
Result so far: 4751.7
If we subtract 581 from 640, we get 59.
Since there are no more digits in the dividend, we add a zero to the remainder making it 590, and continue the process.

Advancing to step 8:
The number 83 fits into 590 7 times, leaving a remainder of 9.
Use 7 as the next digit of our solution. 
Result so far: 4751.77
The remainder is 9 after subtracting 581 from 590.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

The quotient of the division is 4751.77, and the remainder is 0.009.