We're dividing 647980 by 77 
We want to divide 647980 by 77.

Moving on to step 1:
If we divide 6 by 77, we get 0 and a remainder of 6.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 6 to get 6.
Include the next digit (4) from the dividend after 6, then repeat: 64 / 77

On to step 2:
If we divide 64 by 77, we get 0 and a remainder of 64.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 64, we get 64.
Append the next digit (7) from the dividend to 64 and continue with: 647 / 77

Let's proceed to step 3:
647 divided by 77 is 8 with a remainder of 31.
Write down 8 as next digit of the result. 
Result so far: 8.0
The remainder is 31 after subtracting 616 from 647.
Fetch the next digit (9) from the dividend, attach it to 31 and continue: 319 / 77

Advancing to step 4:
77 goes into 319 4 times with a remainder of 11.
Write down 4 as next digit of the result. 
Result so far: 84.0
Subtract 308 from 319 to get 11.
Take the next digit (8) from the dividend and append it to 11, then repeat: 118 / 77

Advancing to step 5:
The number 77 fits into 118 1 times, leaving a remainder of 41.
Write down 1 as next digit of the result. 
Result so far: 841.0
The remainder is 41 after subtracting 77 from 118.
Fetch the next digit (0) from the dividend, attach it to 41 and continue: 410 / 77

Step 6:
77 goes into 410 5 times with a remainder of 25.
The next digit of our result is 5. 
Result so far: 8415.0
Subtracting 385 from 410 leaves us with 25.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

Let's proceed to step 7:
When dividing 250 by 77, we get 3 with a remainder of 19.
Write down 3 as next digit of the result. 
Result so far: 8415.3
Subtract 231 from 250 to get 19.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

Moving on to step 8:
The number 77 fits into 190 2 times, leaving a remainder of 36.
Record the quotient 2 as the next digit in the result. 
Result so far: 8415.32
Subtract 154 from 190 to get 36.
Since there are no more digits in the dividend, we add a zero to the remainder making it 360, and continue the process.

Going ahead to step 9:
The number 77 fits into 360 4 times, leaving a remainder of 52.
Put 4 as the next digit of the answer. 
Result so far: 8415.324
If we subtract 308 from 360, we get 52.
Since there are no more digits in the dividend, we add a zero to the remainder making it 520, and continue the process.

Step 10:
The number 77 fits into 520 6 times, leaving a remainder of 58.
Record the quotient 6 as the next digit in the result. 
Result so far: 8415.3246
Subtract 462 from 520 to get 58.
Since there are no more digits in the dividend, we add a zero to the remainder making it 580, and continue the process.

Let's proceed to step 11:
When dividing 580 by 77, we get 7 with a remainder of 41.
Put 7 as the next digit of the answer. 
Result so far: 8415.32467
The remainder is 41 after subtracting 539 from 580.
Since there are no more digits in the dividend, we add a zero to the remainder making it 410, and continue the process.

Going ahead to step 12:
77 goes into 410 5 times with a remainder of 25.
Record the quotient 5 as the next digit in the result. 
Result so far: 8415.324675
If we subtract 385 from 410, we get 25.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

Going ahead to step 13:
250 divided by 77 is 3 with a remainder of 19.
Record the quotient 3 as the next digit in the result. 
Result so far: 8415.3246753
If we take 231 away from 250, we end up with 19.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

On to step 14:
If we divide 190 by 77, we get 2 and a remainder of 36.
The number 2 becomes the next digit in our result. 
Result so far: 8415.32467532
If we subtract 154 from 190, we get 36.
Since there are no more digits in the dividend, we add a zero to the remainder making it 360, and continue the process.

The final outcome is 8415.32467532, with a leftover of 3.6e-08.