Let's divide 691999 by 8
The aim is to understand the frequency of 8 in 691999.

Step 1:
When dividing 6 by 8, we get 0 with a remainder of 6.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 6 to get 6.
Fetch the next digit (9) from the dividend, attach it to 6 and continue: 69 / 8

On to step 2:
69 divided by 8 is 8 with a remainder of 5.
Write down 8 as next digit of the result. 
Result so far: 8.0
If we subtract 64 from 69, we get 5.
Include the next digit (1) from the dividend after 5, then repeat: 51 / 8

Let's proceed to step 3:
When dividing 51 by 8, we get 6 with a remainder of 3.
Put 6 as the next digit of the answer. 
Result so far: 86.0
If we subtract 48 from 51, we get 3.
Grab the next digit (9) from the dividend, add it to 3, then carry on: 39 / 8

On to step 4:
If we divide 39 by 8, we get 4 and a remainder of 7.
Put 4 as the next digit of the answer. 
Result so far: 864.0
Deduct 32 from 39 and we're left with 7.
Take the next digit (9) from the dividend and append it to 7, then repeat: 79 / 8

Step 5:
79 divided by 8 is 9 with a remainder of 7.
Record the quotient 9 as the next digit in the result. 
Result so far: 8649.0
The remainder is 7 after subtracting 72 from 79.
Fetch the next digit (9) from the dividend, attach it to 7 and continue: 79 / 8

On to step 6:
The number 8 fits into 79 9 times, leaving a remainder of 7.
Record the quotient 9 as the next digit in the result. 
Result so far: 86499.0
If we subtract 72 from 79, we 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.

On to step 7:
When dividing 70 by 8, we get 8 with a remainder of 6.
The next digit of our result is 8. 
Result so far: 86499.8
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 8:
8 goes into 60 7 times with a remainder of 4.
Put 7 as the next digit of the answer. 
Result so far: 86499.87
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.

Going ahead to step 9:
If we divide 40 by 8, we get 5 and a remainder of 0.
Record the quotient 5 as the next digit in the result. 
Result so far: 86499.875
Subtract 40 from 40 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.

Let's proceed to step 10:
8 can be fit into 0 0 times, resulting in a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 86499.875
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.

Going ahead to step 11:
When dividing 0 by 8, we get 0 with a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 86499.875
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 86499.875, with a leftover of 0.0.