663908 ÷ 83 
The aim is to understand the frequency of 83 in 663908.

Let's proceed to step 1:
83 can be fit into 6 0 times, resulting in a remainder of 6.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 6 after subtracting 0 from 6.
Take the next digit (6) from the dividend and append it to 6, then repeat: 66 / 83

Let's proceed to step 2:
66 divided by 83 is 0 with a remainder of 66.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 66, we end up with 66.
Include the next digit (3) from the dividend after 66, then repeat: 663 / 83

On to step 3:
83 can be fit into 663 7 times, resulting in a remainder of 82.
Use 7 as the next digit of our solution. 
Result so far: 7.0
The remainder is 82 after subtracting 581 from 663.
Bring next digit (9) of the dividend behind the 82 and repeat the process: 829 / 83

On to step 4:
829 divided by 83 is 9 with a remainder of 82.
Use 9 as the next digit of our solution. 
Result so far: 79.0
Deduct 747 from 829 and we're left with 82.
Bring next digit (0) of the dividend behind the 82 and repeat the process: 820 / 83

Step 5:
When dividing 820 by 83, we get 9 with a remainder of 73.
Record the quotient 9 as the next digit in the result. 
Result so far: 799.0
Subtracting 747 from 820 leaves us with 73.
Fetch the next digit (8) from the dividend, attach it to 73 and continue: 738 / 83

Moving on to step 6:
When dividing 738 by 83, we get 8 with a remainder of 74.
The next digit of our result is 8. 
Result so far: 7998.0
The remainder is 74 after subtracting 664 from 738.
Since there are no more digits in the dividend, we add a zero to the remainder making it 740, and continue the process.

Going ahead to step 7:
83 goes into 740 8 times with a remainder of 76.
Record the quotient 8 as the next digit in the result. 
Result so far: 7998.8
Deduct 664 from 740 and we're left with 76.
Since there are no more digits in the dividend, we add a zero to the remainder making it 760, and continue the process.

Going ahead to step 8:
760 divided by 83 is 9 with a remainder of 13.
Put 9 as the next digit of the answer. 
Result so far: 7998.89
If we subtract 747 from 760, we get 13.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

Let's proceed to step 9:
83 can be fit into 130 1 times, resulting in a remainder of 47.
Write down 1 as next digit of the result. 
Result so far: 7998.891
The remainder is 47 after subtracting 83 from 130.
Since there are no more digits in the dividend, we add a zero to the remainder making it 470, and continue the process.

Let's proceed to step 10:
83 can be fit into 470 5 times, resulting in a remainder of 55.
Write down 5 as next digit of the result. 
Result so far: 7998.8915
Deduct 415 from 470 and we're left with 55.
Since there are no more digits in the dividend, we add a zero to the remainder making it 550, and continue the process.

Going ahead to step 11:
When dividing 550 by 83, we get 6 with a remainder of 52.
The number 6 becomes the next digit in our result. 
Result so far: 7998.89156
Deduct 498 from 550 and we're left with 52.
Since there are no more digits in the dividend, we add a zero to the remainder making it 520, and continue the process.

On to step 12:
If we divide 520 by 83, we get 6 and a remainder of 22.
The number 6 becomes the next digit in our result. 
Result so far: 7998.891566
If we subtract 498 from 520, we get 22.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

The final outcome is 7998.891566, with a leftover of 2.2e-06.