We're dividing 921043 by 8 
The aim is to understand the frequency of 8 in 921043.

Step 1:
When dividing 9 by 8, we get 1 with a remainder of 1.
Write down 1 as next digit of the result. 
Result so far: 1.0
Subtracting 8 from 9 leaves us with 1.
Include the next digit (2) from the dividend after 1, then repeat: 12 / 8

Going ahead to step 2:
8 goes into 12 1 times with a remainder of 4.
Write down 1 as next digit of the result. 
Result so far: 11.0
The remainder is 4 after subtracting 8 from 12.
Append the next digit (1) from the dividend to 4 and continue with: 41 / 8

Step 3:
8 goes into 41 5 times with a remainder of 1.
The next digit of our result is 5. 
Result so far: 115.0
If we subtract 40 from 41, we get 1.
Include the next digit (0) from the dividend after 1, then repeat: 10 / 8

On to step 4:
8 goes into 10 1 times with a remainder of 2.
The number 1 becomes the next digit in our result. 
Result so far: 1151.0
Subtract 8 from 10 to get 2.
Take the next digit (4) from the dividend and append it to 2, then repeat: 24 / 8

Going ahead to step 5:
If we divide 24 by 8, we get 3 and a remainder of 0.
Put 3 as the next digit of the answer. 
Result so far: 11513.0
Subtract 24 from 24 to get 0.
Fetch the next digit (3) from the dividend, attach it to 0 and continue: 3 / 8

On to step 6:
3 divided by 8 is 0 with a remainder of 3.
Record the quotient 0 as the next digit in the result. 
Result so far: 115130.0
The remainder is 3 after subtracting 0 from 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Moving on to step 7:
30 divided by 8 is 3 with a remainder of 6.
Use 3 as the next digit of our solution. 
Result so far: 115130.3
Deduct 24 from 30 and we're left with 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Step 8:
When dividing 60 by 8, we get 7 with a remainder of 4.
The next digit of our result is 7. 
Result so far: 115130.37
Subtracting 56 from 60 leaves us with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Step 9:
The number 8 fits into 40 5 times, leaving a remainder of 0.
Use 5 as the next digit of our solution. 
Result so far: 115130.375
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.

Advancing to step 10:
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: 115130.375
The remainder is 0 after subtracting 0 from 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Advancing to step 11:
8 goes into 0 0 times with a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 115130.375
Deduct 0 from 0 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.

The final result is 115130.375 with a remainder of 0.0.