We look at the division of 422091 by 8 
The aim is to understand the frequency of 8 in 422091.

Moving on to step 1:
The number 8 fits into 4 0 times, leaving a remainder of 4.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 4, we end up with 4.
Take the next digit (2) from the dividend and append it to 4, then repeat: 42 / 8

Let's proceed to step 2:
When dividing 42 by 8, we get 5 with a remainder of 2.
Record the quotient 5 as the next digit in the result. 
Result so far: 5.0
If we take 40 away from 42, we end up with 2.
Append the next digit (2) from the dividend to 2 and continue with: 22 / 8

Going ahead to step 3:
When dividing 22 by 8, we get 2 with a remainder of 6.
The next digit of our result is 2. 
Result so far: 52.0
If we subtract 16 from 22, we get 6.
Append the next digit (0) from the dividend to 6 and continue with: 60 / 8

Moving on to step 4:
60 divided by 8 is 7 with a remainder of 4.
Write down 7 as next digit of the result. 
Result so far: 527.0
Deduct 56 from 60 and we're left with 4.
Grab the next digit (9) from the dividend, add it to 4, then carry on: 49 / 8

Let's proceed to step 5:
If we divide 49 by 8, we get 6 and a remainder of 1.
Record the quotient 6 as the next digit in the result. 
Result so far: 5276.0
The remainder is 1 after subtracting 48 from 49.
Fetch the next digit (1) from the dividend, attach it to 1 and continue: 11 / 8

Let's proceed to step 6:
8 goes into 11 1 times with a remainder of 3.
The number 1 becomes the next digit in our result. 
Result so far: 52761.0
If we subtract 8 from 11, we get 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Going ahead to step 7:
8 can be fit into 30 3 times, resulting in a remainder of 6.
Use 3 as the next digit of our solution. 
Result so far: 52761.3
If we subtract 24 from 30, we 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.

Moving on to step 8:
The number 8 fits into 60 7 times, leaving a remainder of 4.
Write down 7 as next digit of the result. 
Result so far: 52761.37
Deduct 56 from 60 and we're left 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.

Advancing to step 9:
The number 8 fits into 40 5 times, leaving a remainder of 0.
Write down 5 as next digit of the result. 
Result so far: 52761.375
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.

Advancing 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: 52761.375
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.

Let's proceed to step 11:
The number 8 fits into 0 0 times, leaving a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 52761.375
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.

The final outcome is 52761.375, with a leftover of 0.0.