We look at the division of 99509 by 8 
We want to figure out the number of times 99509 can be divided by 8.

Moving on to step 1:
The number 8 fits into 9 1 times, leaving a remainder of 1.
Write down 1 as next digit of the result. 
Result so far: 1.0
If we subtract 8 from 9, we get 1.
Bring next digit (9) of the dividend behind the 1 and repeat the process: 19 / 8

Step 2:
If we divide 19 by 8, we get 2 and a remainder of 3.
Put 2 as the next digit of the answer. 
Result so far: 12.0
Subtract 16 from 19 to get 3.
Bring next digit (5) of the dividend behind the 3 and repeat the process: 35 / 8

Moving on to step 3:
The number 8 fits into 35 4 times, leaving a remainder of 3.
Put 4 as the next digit of the answer. 
Result so far: 124.0
If we subtract 32 from 35, we get 3.
Grab the next digit (0) from the dividend, add it to 3, then carry on: 30 / 8

Going ahead to step 4:
When dividing 30 by 8, we get 3 with a remainder of 6.
Use 3 as the next digit of our solution. 
Result so far: 1243.0
If we subtract 24 from 30, we get 6.
Fetch the next digit (9) from the dividend, attach it to 6 and continue: 69 / 8

Let's proceed to step 5:
If we divide 69 by 8, we get 8 and a remainder of 5.
Put 8 as the next digit of the answer. 
Result so far: 12438.0
The remainder is 5 after subtracting 64 from 69.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Advancing to step 6:
8 goes into 50 6 times with a remainder of 2.
Put 6 as the next digit of the answer. 
Result so far: 12438.6
The remainder is 2 after subtracting 48 from 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Let's proceed to step 7:
If we divide 20 by 8, we get 2 and a remainder of 4.
The next digit of our result is 2. 
Result so far: 12438.62
If we take 16 away from 20, 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 8:
8 can be fit into 40 5 times, resulting in a remainder of 0.
Write down 5 as next digit of the result. 
Result so far: 12438.625
Subtracting 40 from 40 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.

Let's proceed to step 9:
When dividing 0 by 8, we get 0 with a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 12438.625
Subtract 0 from 0 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.

Moving on to step 10:
8 goes into 0 0 times with a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 12438.625
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.

In conclusion, the division gives 12438.625 with a balance of 0.0.