We're dividing 66996905 by 817 
The aim is to understand the frequency of 817 in 66996905.

Moving on to step 1:
817 can be fit into 6 0 times, resulting in a remainder of 6.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 6 and we're left with 6.
Append the next digit (6) from the dividend to 6 and continue with: 66 / 817

Moving on to step 2:
66 divided by 817 is 0 with a remainder of 66.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 66, we get 66.
Bring next digit (9) of the dividend behind the 66 and repeat the process: 669 / 817

Going ahead to step 3:
When dividing 669 by 817, we get 0 with a remainder of 669.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 669 after subtracting 0 from 669.
Take the next digit (9) from the dividend and append it to 669, then repeat: 6699 / 817

Step 4:
When dividing 6699 by 817, we get 8 with a remainder of 163.
The number 8 becomes the next digit in our result. 
Result so far: 8.0
Subtracting 6536 from 6699 leaves us with 163.
Fetch the next digit (6) from the dividend, attach it to 163 and continue: 1636 / 817

Moving on to step 5:
817 can be fit into 1636 2 times, resulting in a remainder of 2.
The number 2 becomes the next digit in our result. 
Result so far: 82.0
The remainder is 2 after subtracting 1634 from 1636.
Include the next digit (9) from the dividend after 2, then repeat: 29 / 817

Going ahead to step 6:
817 goes into 29 0 times with a remainder of 29.
The next digit of our result is 0. 
Result so far: 820.0
Subtracting 0 from 29 leaves us with 29.
Fetch the next digit (0) from the dividend, attach it to 29 and continue: 290 / 817

Moving on to step 7:
817 can be fit into 290 0 times, resulting in a remainder of 290.
Write down 0 as next digit of the result. 
Result so far: 8200.0
The remainder is 290 after subtracting 0 from 290.
Fetch the next digit (5) from the dividend, attach it to 290 and continue: 2905 / 817

On to step 8:
2905 divided by 817 is 3 with a remainder of 454.
Record the quotient 3 as the next digit in the result. 
Result so far: 82003.0
Subtracting 2451 from 2905 leaves us with 454.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4540, and continue the process.

On to step 9:
When dividing 4540 by 817, we get 5 with a remainder of 455.
The number 5 becomes the next digit in our result. 
Result so far: 82003.5
If we subtract 4085 from 4540, we get 455.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4550, and continue the process.

Advancing to step 10:
817 can be fit into 4550 5 times, resulting in a remainder of 465.
Put 5 as the next digit of the answer. 
Result so far: 82003.55
Deduct 4085 from 4550 and we're left with 465.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4650, and continue the process.

Our division results in 82003.55 with a remaining 0.465.