We look at the division of 80159586 by 8 
Let's see how many times 8 fits into 80159586.

Advancing to step 1:
8 can be fit into 8 1 times, resulting in a remainder of 0.
Write down 1 as next digit of the result. 
Result so far: 1.0
If we take 8 away from 8, we end up with 0.
Bring next digit (0) of the dividend behind the 0 and repeat the process: 0 / 8

On to step 2:
0 divided by 8 is 0 with a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 10.0
If we take 0 away from 0, we end up with 0.
Append the next digit (1) from the dividend to 0 and continue with: 1 / 8

On to step 3:
If we divide 1 by 8, we get 0 and a remainder of 1.
Write down 0 as next digit of the result. 
Result so far: 100.0
The remainder is 1 after subtracting 0 from 1.
Bring next digit (5) of the dividend behind the 1 and repeat the process: 15 / 8

Advancing to step 4:
15 divided by 8 is 1 with a remainder of 7.
Write down 1 as next digit of the result. 
Result so far: 1001.0
Deduct 8 from 15 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:
8 can be fit into 79 9 times, resulting in a remainder of 7.
Use 9 as the next digit of our solution. 
Result so far: 10019.0
If we subtract 72 from 79, we get 7.
Bring next digit (5) of the dividend behind the 7 and repeat the process: 75 / 8

Advancing to step 6:
If we divide 75 by 8, we get 9 and a remainder of 3.
Record the quotient 9 as the next digit in the result. 
Result so far: 100199.0
Subtracting 72 from 75 leaves us with 3.
Fetch the next digit (8) from the dividend, attach it to 3 and continue: 38 / 8

Let's proceed to step 7:
38 divided by 8 is 4 with a remainder of 6.
Write down 4 as next digit of the result. 
Result so far: 1001994.0
Subtracting 32 from 38 leaves us with 6.
Bring next digit (6) of the dividend behind the 6 and repeat the process: 66 / 8

Advancing to step 8:
If we divide 66 by 8, we get 8 and a remainder of 2.
Record the quotient 8 as the next digit in the result. 
Result so far: 10019948.0
The remainder is 2 after subtracting 64 from 66.
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 9:
8 goes into 20 2 times with a remainder of 4.
Record the quotient 2 as the next digit in the result. 
Result so far: 10019948.2
Subtract 16 from 20 to get 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Let's proceed to step 10:
When dividing 40 by 8, we get 5 with a remainder of 0.
The next digit of our result is 5. 
Result so far: 10019948.25
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 11:
0 divided by 8 is 0 with a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 10019948.25
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.

Going ahead to step 12:
The number 8 fits into 0 0 times, leaving a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 10019948.25
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.

Our division results in 10019948.25 with a remaining 0.0.