Let's divide 15517 by 8
The aim is to understand the frequency of 8 in 15517.

Moving on to step 1:
1 divided by 8 is 0 with a remainder of 1.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 1 to get 1.
Include the next digit (5) from the dividend after 1, then repeat: 15 / 8

Moving on to step 2:
If we divide 15 by 8, we get 1 and a remainder of 7.
Write down 1 as next digit of the result. 
Result so far: 1.0
Deduct 8 from 15 and we're left with 7.
Take the next digit (5) from the dividend and append it to 7, then repeat: 75 / 8

Step 3:
8 goes into 75 9 times with a remainder of 3.
Use 9 as the next digit of our solution. 
Result so far: 19.0
Subtract 72 from 75 to get 3.
Fetch the next digit (1) from the dividend, attach it to 3 and continue: 31 / 8

On to step 4:
The number 8 fits into 31 3 times, leaving a remainder of 7.
The number 3 becomes the next digit in our result. 
Result so far: 193.0
If we take 24 away from 31, we end up with 7.
Fetch the next digit (7) from the dividend, attach it to 7 and continue: 77 / 8

Going ahead to step 5:
When dividing 77 by 8, we get 9 with a remainder of 5.
Put 9 as the next digit of the answer. 
Result so far: 1939.0
Subtracting 72 from 77 leaves us with 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Let's proceed to step 6:
When dividing 50 by 8, we get 6 with a remainder of 2.
Record the quotient 6 as the next digit in the result. 
Result so far: 1939.6
If we take 48 away from 50, we end up with 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

On to step 7:
20 divided by 8 is 2 with a remainder of 4.
The number 2 becomes the next digit in our result. 
Result so far: 1939.62
Subtract 16 from 20 to get 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Moving on to step 8:
40 divided by 8 is 5 with a remainder of 0.
Write down 5 as next digit of the result. 
Result so far: 1939.625
If we subtract 40 from 40, we get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Moving on to step 9:
8 can be fit into 0 0 times, resulting in a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 1939.625
Subtracting 0 from 0 leaves us with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Moving on to step 10:
When dividing 0 by 8, we get 0 with a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 1939.625
Subtracting 0 from 0 leaves us with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

The quotient of the division is 1939.625, and the remainder is 0.0.