983902 divided by 80 
Our goal is to divide 983902 by 80.

Moving on to step 1:
9 divided by 80 is 0 with a remainder of 9.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 9 and we're left with 9.
Grab the next digit (8) from the dividend, add it to 9, then carry on: 98 / 80

Step 2:
If we divide 98 by 80, we get 1 and a remainder of 18.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
Deduct 80 from 98 and we're left with 18.
Append the next digit (3) from the dividend to 18 and continue with: 183 / 80

Going ahead to step 3:
When dividing 183 by 80, we get 2 with a remainder of 23.
Write down 2 as next digit of the result. 
Result so far: 12.0
Deduct 160 from 183 and we're left with 23.
Fetch the next digit (9) from the dividend, attach it to 23 and continue: 239 / 80

Advancing to step 4:
80 can be fit into 239 2 times, resulting in a remainder of 79.
Record the quotient 2 as the next digit in the result. 
Result so far: 122.0
If we take 160 away from 239, we end up with 79.
Bring next digit (0) of the dividend behind the 79 and repeat the process: 790 / 80

Moving on to step 5:
The number 80 fits into 790 9 times, leaving a remainder of 70.
Use 9 as the next digit of our solution. 
Result so far: 1229.0
If we subtract 720 from 790, we get 70.
Grab the next digit (2) from the dividend, add it to 70, then carry on: 702 / 80

Let's proceed to step 6:
The number 80 fits into 702 8 times, leaving a remainder of 62.
Use 8 as the next digit of our solution. 
Result so far: 12298.0
Subtracting 640 from 702 leaves us with 62.
Since there are no more digits in the dividend, we add a zero to the remainder making it 620, and continue the process.

Step 7:
If we divide 620 by 80, we get 7 and a remainder of 60.
The number 7 becomes the next digit in our result. 
Result so far: 12298.7
Subtracting 560 from 620 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 8:
600 divided by 80 is 7 with a remainder of 40.
Use 7 as the next digit of our solution. 
Result so far: 12298.77
If we take 560 away from 600, we end up 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.

The final result is 12298.77 with a remainder of 0.04.