We divide 83919 by 80
We want to figure out the number of times 83919 can be divided by 80.

Going ahead to step 1:
The number 80 fits into 8 0 times, leaving a remainder of 8.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 8 leaves us with 8.
Bring next digit (3) of the dividend behind the 8 and repeat the process: 83 / 80

Let's proceed to step 2:
80 goes into 83 1 times with a remainder of 3.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
Subtracting 80 from 83 leaves us with 3.
Fetch the next digit (9) from the dividend, attach it to 3 and continue: 39 / 80

On to step 3:
The number 80 fits into 39 0 times, leaving a remainder of 39.
Write down 0 as next digit of the result. 
Result so far: 10.0
Deduct 0 from 39 and we're left with 39.
Take the next digit (1) from the dividend and append it to 39, then repeat: 391 / 80

On to step 4:
The number 80 fits into 391 4 times, leaving a remainder of 71.
Write down 4 as next digit of the result. 
Result so far: 104.0
If we subtract 320 from 391, we get 71.
Include the next digit (9) from the dividend after 71, then repeat: 719 / 80

Let's proceed to step 5:
If we divide 719 by 80, we get 8 and a remainder of 79.
The number 8 becomes the next digit in our result. 
Result so far: 1048.0
The remainder is 79 after subtracting 640 from 719.
Since there are no more digits in the dividend, we add a zero to the remainder making it 790, and continue the process.

Going ahead to step 6:
80 goes into 790 9 times with a remainder of 70.
The next digit of our result is 9. 
Result so far: 1048.9
Subtracting 720 from 790 leaves us with 70.
Since there are no more digits in the dividend, we add a zero to the remainder making it 700, and continue the process.

Going ahead to step 7:
When dividing 700 by 80, we get 8 with a remainder of 60.
The next digit of our result is 8. 
Result so far: 1048.98
The remainder is 60 after subtracting 640 from 700.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

On to step 8:
If we divide 600 by 80, we get 7 and a remainder of 40.
Put 7 as the next digit of the answer. 
Result so far: 1048.987
If we subtract 560 from 600, we 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.

Moving on to step 9:
80 can be fit into 400 5 times, resulting in a remainder of 0.
Write down 5 as next digit of the result. 
Result so far: 1048.9875
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 10:
When dividing 0 by 80, we get 0 with a remainder of 0.
The next digit of our result is 0. 
Result so far: 1048.9875
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.

Advancing to step 11:
0 divided by 80 is 0 with a remainder of 0.
The next digit of our result is 0. 
Result so far: 1048.9875
Deduct 0 from 0 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.

The final outcome is 1048.9875, with a leftover of 0.0.