We look at the division of 86736792 by 80 
Our goal is to divide 86736792 by 80.

Let's proceed to step 1:
If we divide 8 by 80, we get 0 and a remainder of 8.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 8 after subtracting 0 from 8.
Grab the next digit (6) from the dividend, add it to 8, then carry on: 86 / 80

On to step 2:
86 divided by 80 is 1 with a remainder of 6.
Use 1 as the next digit of our solution. 
Result so far: 1.0
Deduct 80 from 86 and we're left with 6.
Append the next digit (7) from the dividend to 6 and continue with: 67 / 80

On to step 3:
80 can be fit into 67 0 times, resulting in a remainder of 67.
The number 0 becomes the next digit in our result. 
Result so far: 10.0
Subtracting 0 from 67 leaves us with 67.
Fetch the next digit (3) from the dividend, attach it to 67 and continue: 673 / 80

Moving on to step 4:
80 can be fit into 673 8 times, resulting in a remainder of 33.
Record the quotient 8 as the next digit in the result. 
Result so far: 108.0
Subtracting 640 from 673 leaves us with 33.
Include the next digit (6) from the dividend after 33, then repeat: 336 / 80

Let's proceed to step 5:
When dividing 336 by 80, we get 4 with a remainder of 16.
Put 4 as the next digit of the answer. 
Result so far: 1084.0
Subtract 320 from 336 to get 16.
Include the next digit (7) from the dividend after 16, then repeat: 167 / 80

Let's proceed to step 6:
When dividing 167 by 80, we get 2 with a remainder of 7.
The next digit of our result is 2. 
Result so far: 10842.0
Subtract 160 from 167 to get 7.
Include the next digit (9) from the dividend after 7, then repeat: 79 / 80

Step 7:
When dividing 79 by 80, we get 0 with a remainder of 79.
Write down 0 as next digit of the result. 
Result so far: 108420.0
If we take 0 away from 79, we end up with 79.
Bring next digit (2) of the dividend behind the 79 and repeat the process: 792 / 80

Let's proceed to step 8:
80 goes into 792 9 times with a remainder of 72.
Record the quotient 9 as the next digit in the result. 
Result so far: 1084209.0
The remainder is 72 after subtracting 720 from 792.
Since there are no more digits in the dividend, we add a zero to the remainder making it 720, and continue the process.

On to step 9:
When dividing 720 by 80, we get 9 with a remainder of 0.
The next digit of our result is 9. 
Result so far: 1084209.9
Deduct 720 from 720 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.

On to step 10:
80 can be fit into 0 0 times, resulting in a remainder of 0.
The next digit of our result is 0. 
Result so far: 1084209.9
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.

Let's proceed to step 11:
The number 80 fits into 0 0 times, leaving a remainder of 0.
The next digit of our result is 0. 
Result so far: 1084209.9
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.

After the division, we end up with 1084209.9 and a remainder of 0.0.