We're dividing 83907915 by 80 
Our goal is to divide 83907915 by 80.

Let's proceed to step 1:
80 goes into 8 0 times with a remainder of 8.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 8 and we're left with 8.
Grab the next digit (3) from the dividend, add it to 8, then carry on: 83 / 80

Going ahead to step 2:
80 goes into 83 1 times with a remainder of 3.
Write down 1 as next digit of the result. 
Result so far: 1.0
Subtract 80 from 83 to get 3.
Fetch the next digit (9) from the dividend, attach it to 3 and continue: 39 / 80

On to step 3:
80 goes into 39 0 times with a remainder of 39.
The next digit of our result is 0. 
Result so far: 10.0
If we take 0 away from 39, we end up with 39.
Grab the next digit (0) from the dividend, add it to 39, then carry on: 390 / 80

Advancing to step 4:
When dividing 390 by 80, we get 4 with a remainder of 70.
The number 4 becomes the next digit in our result. 
Result so far: 104.0
Deduct 320 from 390 and we're left with 70.
Grab the next digit (7) from the dividend, add it to 70, then carry on: 707 / 80

On to step 5:
80 can be fit into 707 8 times, resulting in a remainder of 67.
The next digit of our result is 8. 
Result so far: 1048.0
If we take 640 away from 707, we end up with 67.
Fetch the next digit (9) from the dividend, attach it to 67 and continue: 679 / 80

Moving on to step 6:
679 divided by 80 is 8 with a remainder of 39.
Write down 8 as next digit of the result. 
Result so far: 10488.0
Subtract 640 from 679 to get 39.
Bring next digit (1) of the dividend behind the 39 and repeat the process: 391 / 80

Let's proceed to step 7:
80 can be fit into 391 4 times, resulting in a remainder of 71.
Put 4 as the next digit of the answer. 
Result so far: 104884.0
The remainder is 71 after subtracting 320 from 391.
Grab the next digit (5) from the dividend, add it to 71, then carry on: 715 / 80

On to step 8:
The number 80 fits into 715 8 times, leaving a remainder of 75.
The number 8 becomes the next digit in our result. 
Result so far: 1048848.0
The remainder is 75 after subtracting 640 from 715.
Since there are no more digits in the dividend, we add a zero to the remainder making it 750, and continue the process.

Step 9:
When dividing 750 by 80, we get 9 with a remainder of 30.
Write down 9 as next digit of the result. 
Result so far: 1048848.9
If we take 720 away from 750, we end up with 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Going ahead to step 10:
80 can be fit into 300 3 times, resulting in a remainder of 60.
Put 3 as the next digit of the answer. 
Result so far: 1048848.93
The remainder is 60 after subtracting 240 from 300.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Let's proceed to step 11:
The number 80 fits into 600 7 times, leaving a remainder of 40.
The number 7 becomes the next digit in our result. 
Result so far: 1048848.937
Subtract 560 from 600 to get 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Step 12:
The number 80 fits into 400 5 times, leaving a remainder of 0.
The number 5 becomes the next digit in our result. 
Result so far: 1048848.9375
Subtract 400 from 400 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.

Advancing to step 13:
The number 80 fits into 0 0 times, leaving a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 1048848.9375
The remainder is 0 after subtracting 0 from 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Advancing to step 14:
The number 80 fits into 0 0 times, leaving a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 1048848.9375
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.

The quotient of the division is 1048848.9375, and the remainder is 0.0.