10215 divided by 8 
The aim is to understand the frequency of 8 in 10215.

Going ahead to step 1:
8 can be fit into 1 0 times, resulting in a remainder of 1.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 1 leaves us with 1.
Grab the next digit (0) from the dividend, add it to 1, then carry on: 10 / 8

Advancing to step 2:
When dividing 10 by 8, we get 1 with a remainder of 2.
Write down 1 as next digit of the result. 
Result so far: 1.0
Subtract 8 from 10 to get 2.
Include the next digit (2) from the dividend after 2, then repeat: 22 / 8

Advancing to step 3:
When dividing 22 by 8, we get 2 with a remainder of 6.
Use 2 as the next digit of our solution. 
Result so far: 12.0
Subtract 16 from 22 to get 6.
Include the next digit (1) from the dividend after 6, then repeat: 61 / 8

On to step 4:
When dividing 61 by 8, we get 7 with a remainder of 5.
Put 7 as the next digit of the answer. 
Result so far: 127.0
If we take 56 away from 61, we end up with 5.
Fetch the next digit (5) from the dividend, attach it to 5 and continue: 55 / 8

On to step 5:
8 can be fit into 55 6 times, resulting in a remainder of 7.
Record the quotient 6 as the next digit in the result. 
Result so far: 1276.0
Subtract 48 from 55 to get 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

Let's proceed to step 6:
The number 8 fits into 70 8 times, leaving a remainder of 6.
Use 8 as the next digit of our solution. 
Result so far: 1276.8
Subtract 64 from 70 to get 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

On to step 7:
8 can be fit into 60 7 times, resulting in a remainder of 4.
Use 7 as the next digit of our solution. 
Result so far: 1276.87
The remainder is 4 after subtracting 56 from 60.
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.
Record the quotient 5 as the next digit in the result. 
Result so far: 1276.875
Deduct 40 from 40 and we're left 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.

Step 9:
8 can be fit into 0 0 times, resulting in a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 1276.875
If we subtract 0 from 0, 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.

On to step 10:
0 divided by 8 is 0 with a remainder of 0.
The next digit of our result is 0. 
Result so far: 1276.875
Subtract 0 from 0 to 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.

The final outcome is 1276.875, with a leftover of 0.0.