690612 divided by 8 
The aim is to understand the frequency of 8 in 690612.

Step 1:
6 divided by 8 is 0 with a remainder of 6.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 6 leaves us with 6.
Take the next digit (9) from the dividend and append it to 6, then repeat: 69 / 8

On to step 2:
If we divide 69 by 8, we get 8 and a remainder of 5.
The number 8 becomes the next digit in our result. 
Result so far: 8.0
Subtracting 64 from 69 leaves us with 5.
Include the next digit (0) from the dividend after 5, then repeat: 50 / 8

Going ahead to step 3:
8 goes into 50 6 times with a remainder of 2.
The next digit of our result is 6. 
Result so far: 86.0
If we subtract 48 from 50, we get 2.
Take the next digit (6) from the dividend and append it to 2, then repeat: 26 / 8

Step 4:
8 can be fit into 26 3 times, resulting in a remainder of 2.
Write down 3 as next digit of the result. 
Result so far: 863.0
Deduct 24 from 26 and we're left with 2.
Take the next digit (1) from the dividend and append it to 2, then repeat: 21 / 8

Moving on to step 5:
The number 8 fits into 21 2 times, leaving a remainder of 5.
The next digit of our result is 2. 
Result so far: 8632.0
Subtracting 16 from 21 leaves us with 5.
Fetch the next digit (2) from the dividend, attach it to 5 and continue: 52 / 8

On to step 6:
8 goes into 52 6 times with a remainder of 4.
The next digit of our result is 6. 
Result so far: 86326.0
Deduct 48 from 52 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.

Moving on to step 7:
When dividing 40 by 8, we get 5 with a remainder of 0.
Use 5 as the next digit of our solution. 
Result so far: 86326.5
If we take 40 away from 40, 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.

Step 8:
If we divide 0 by 8, we get 0 and a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 86326.5
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 9:
8 can be fit into 0 0 times, resulting in a remainder of 0.
The next digit of our result is 0. 
Result so far: 86326.5
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.

Our division results in 86326.5 with a remaining 0.0.