We divide 78383086 by 80
Let's see how many times 80 fits into 78383086.

Let's proceed to step 1:
7 divided by 80 is 0 with a remainder of 7.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 7 to get 7.
Bring next digit (8) of the dividend behind the 7 and repeat the process: 78 / 80

On to step 2:
78 divided by 80 is 0 with a remainder of 78.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 78 and we're left with 78.
Fetch the next digit (3) from the dividend, attach it to 78 and continue: 783 / 80

Advancing to step 3:
80 can be fit into 783 9 times, resulting in a remainder of 63.
Put 9 as the next digit of the answer. 
Result so far: 9.0
Subtracting 720 from 783 leaves us with 63.
Bring next digit (8) of the dividend behind the 63 and repeat the process: 638 / 80

Advancing to step 4:
638 divided by 80 is 7 with a remainder of 78.
Record the quotient 7 as the next digit in the result. 
Result so far: 97.0
The remainder is 78 after subtracting 560 from 638.
Take the next digit (3) from the dividend and append it to 78, then repeat: 783 / 80

Advancing to step 5:
If we divide 783 by 80, we get 9 and a remainder of 63.
Put 9 as the next digit of the answer. 
Result so far: 979.0
Subtract 720 from 783 to get 63.
Take the next digit (0) from the dividend and append it to 63, then repeat: 630 / 80

Let's proceed to step 6:
80 can be fit into 630 7 times, resulting in a remainder of 70.
Use 7 as the next digit of our solution. 
Result so far: 9797.0
Subtracting 560 from 630 leaves us with 70.
Take the next digit (8) from the dividend and append it to 70, then repeat: 708 / 80

Step 7:
When dividing 708 by 80, we get 8 with a remainder of 68.
The number 8 becomes the next digit in our result. 
Result so far: 97978.0
Subtract 640 from 708 to get 68.
Bring next digit (6) of the dividend behind the 68 and repeat the process: 686 / 80

On to step 8:
The number 80 fits into 686 8 times, leaving a remainder of 46.
Record the quotient 8 as the next digit in the result. 
Result so far: 979788.0
Deduct 640 from 686 and we're left with 46.
Since there are no more digits in the dividend, we add a zero to the remainder making it 460, and continue the process.

Going ahead to step 9:
If we divide 460 by 80, we get 5 and a remainder of 60.
Write down 5 as next digit of the result. 
Result so far: 979788.5
Subtracting 400 from 460 leaves us with 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Step 10:
80 can be fit into 600 7 times, resulting in a remainder of 40.
The number 7 becomes the next digit in our result. 
Result so far: 979788.57
Subtracting 560 from 600 leaves us with 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Going ahead to step 11:
80 goes into 400 5 times with a remainder of 0.
The number 5 becomes the next digit in our result. 
Result so far: 979788.575
Subtracting 400 from 400 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.

Going ahead to step 12:
80 goes into 0 0 times with a remainder of 0.
The next digit of our result is 0. 
Result so far: 979788.575
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.

Going ahead to step 13:
80 goes into 0 0 times with a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 979788.575
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 979788.575 with a remaining 0.0.