838668 ÷ 8 
The aim is to understand the frequency of 8 in 838668.

On to step 1:
8 can be fit into 8 1 times, resulting in a remainder of 0.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
Subtract 8 from 8 to get 0.
Append the next digit (3) from the dividend to 0 and continue with: 3 / 8

Going ahead to step 2:
8 goes into 3 0 times with a remainder of 3.
The next digit of our result is 0. 
Result so far: 10.0
Deduct 0 from 3 and we're left with 3.
Append the next digit (8) from the dividend to 3 and continue with: 38 / 8

Going ahead to step 3:
8 goes into 38 4 times with a remainder of 6.
Write down 4 as next digit of the result. 
Result so far: 104.0
If we take 32 away from 38, we end up with 6.
Take the next digit (6) from the dividend and append it to 6, then repeat: 66 / 8

Step 4:
If we divide 66 by 8, we get 8 and a remainder of 2.
Put 8 as the next digit of the answer. 
Result so far: 1048.0
Deduct 64 from 66 and we're left with 2.
Bring next digit (6) of the dividend behind the 2 and repeat the process: 26 / 8

Moving on to step 5:
The number 8 fits into 26 3 times, leaving a remainder of 2.
Write down 3 as next digit of the result. 
Result so far: 10483.0
If we take 24 away from 26, we end up with 2.
Fetch the next digit (8) from the dividend, attach it to 2 and continue: 28 / 8

Let's proceed to step 6:
When dividing 28 by 8, we get 3 with a remainder of 4.
The next digit of our result is 3. 
Result so far: 104833.0
If we take 24 away from 28, we end up 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.

Going ahead to step 7:
When dividing 40 by 8, we get 5 with a remainder of 0.
Record the quotient 5 as the next digit in the result. 
Result so far: 104833.5
The remainder is 0 after subtracting 40 from 40.
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 8:
8 can be fit into 0 0 times, resulting in a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 104833.5
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.

Step 9:
If we divide 0 by 8, we get 0 and a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 104833.5
If we take 0 away from 0, we end up 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 outcome is 104833.5, with a leftover of 0.0.