We're dividing 78857149 by 980 
Our goal is to divide 78857149 by 980.

Moving on to step 1:
980 goes into 7 0 times with a remainder of 7.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 7 after subtracting 0 from 7.
Fetch the next digit (8) from the dividend, attach it to 7 and continue: 78 / 980

Step 2:
980 can be fit into 78 0 times, resulting in a remainder of 78.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 78, we get 78.
Append the next digit (8) from the dividend to 78 and continue with: 788 / 980

Moving on to step 3:
The number 980 fits into 788 0 times, leaving a remainder of 788.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 788, we get 788.
Append the next digit (5) from the dividend to 788 and continue with: 7885 / 980

Step 4:
The number 980 fits into 7885 8 times, leaving a remainder of 45.
The number 8 becomes the next digit in our result. 
Result so far: 8.0
Subtracting 7840 from 7885 leaves us with 45.
Include the next digit (7) from the dividend after 45, then repeat: 457 / 980

Going ahead to step 5:
980 goes into 457 0 times with a remainder of 457.
Use 0 as the next digit of our solution. 
Result so far: 80.0
The remainder is 457 after subtracting 0 from 457.
Bring next digit (1) of the dividend behind the 457 and repeat the process: 4571 / 980

Advancing to step 6:
4571 divided by 980 is 4 with a remainder of 651.
Record the quotient 4 as the next digit in the result. 
Result so far: 804.0
Subtract 3920 from 4571 to get 651.
Fetch the next digit (4) from the dividend, attach it to 651 and continue: 6514 / 980

Let's proceed to step 7:
If we divide 6514 by 980, we get 6 and a remainder of 634.
The next digit of our result is 6. 
Result so far: 8046.0
Deduct 5880 from 6514 and we're left with 634.
Fetch the next digit (9) from the dividend, attach it to 634 and continue: 6349 / 980

Step 8:
6349 divided by 980 is 6 with a remainder of 469.
The next digit of our result is 6. 
Result so far: 80466.0
The remainder is 469 after subtracting 5880 from 6349.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4690, and continue the process.

Moving on to step 9:
980 can be fit into 4690 4 times, resulting in a remainder of 770.
Write down 4 as next digit of the result. 
Result so far: 80466.4
The remainder is 770 after subtracting 3920 from 4690.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7700, and continue the process.

On to step 10:
980 goes into 7700 7 times with a remainder of 840.
Write down 7 as next digit of the result. 
Result so far: 80466.47
Subtracting 6860 from 7700 leaves us with 840.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8400, and continue the process.

On to step 11:
When dividing 8400 by 980, we get 8 with a remainder of 560.
The number 8 becomes the next digit in our result. 
Result so far: 80466.478
Subtract 7840 from 8400 to get 560.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5600, and continue the process.

On to step 12:
If we divide 5600 by 980, we get 5 and a remainder of 700.
The next digit of our result is 5. 
Result so far: 80466.4785
If we take 4900 away from 5600, we end up with 700.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7000, and continue the process.

Moving on to step 13:
When dividing 7000 by 980, we get 7 with a remainder of 140.
Record the quotient 7 as the next digit in the result. 
Result so far: 80466.47857
If we subtract 6860 from 7000, we get 140.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1400, and continue the process.

Let's proceed to step 14:
The number 980 fits into 1400 1 times, leaving a remainder of 420.
The number 1 becomes the next digit in our result. 
Result so far: 80466.478571
If we subtract 980 from 1400, we get 420.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4200, and continue the process.

Going ahead to step 15:
The number 980 fits into 4200 4 times, leaving a remainder of 280.
Record the quotient 4 as the next digit in the result. 
Result so far: 80466.4785714
If we subtract 3920 from 4200, we get 280.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2800, and continue the process.

Going ahead to step 16:
If we divide 2800 by 980, we get 2 and a remainder of 840.
The number 2 becomes the next digit in our result. 
Result so far: 80466.47857142
If we subtract 1960 from 2800, we get 840.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8400, and continue the process.

The final result is 80466.47857142 with a remainder of 8.4e-07.