We look at the division of 643016 by 77 
We want to divide 643016 by 77.

Let's proceed to step 1:
77 can be fit into 6 0 times, resulting in a remainder of 6.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 6 to get 6.
Take the next digit (4) from the dividend and append it to 6, then repeat: 64 / 77

Advancing to step 2:
77 goes into 64 0 times with a remainder of 64.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 64, we end up with 64.
Include the next digit (3) from the dividend after 64, then repeat: 643 / 77

Advancing to step 3:
If we divide 643 by 77, we get 8 and a remainder of 27.
Write down 8 as next digit of the result. 
Result so far: 8.0
Subtract 616 from 643 to get 27.
Bring next digit (0) of the dividend behind the 27 and repeat the process: 270 / 77

Advancing to step 4:
270 divided by 77 is 3 with a remainder of 39.
Write down 3 as next digit of the result. 
Result so far: 83.0
Subtracting 231 from 270 leaves us with 39.
Include the next digit (1) from the dividend after 39, then repeat: 391 / 77

Going ahead to step 5:
77 goes into 391 5 times with a remainder of 6.
Use 5 as the next digit of our solution. 
Result so far: 835.0
If we subtract 385 from 391, we get 6.
Include the next digit (6) from the dividend after 6, then repeat: 66 / 77

Let's proceed to step 6:
If we divide 66 by 77, we get 0 and a remainder of 66.
Record the quotient 0 as the next digit in the result. 
Result so far: 8350.0
The remainder is 66 after subtracting 0 from 66.
Since there are no more digits in the dividend, we add a zero to the remainder making it 660, and continue the process.

On to step 7:
660 divided by 77 is 8 with a remainder of 44.
The next digit of our result is 8. 
Result so far: 8350.8
If we take 616 away from 660, we end up with 44.
Since there are no more digits in the dividend, we add a zero to the remainder making it 440, and continue the process.

Let's proceed to step 8:
440 divided by 77 is 5 with a remainder of 55.
Record the quotient 5 as the next digit in the result. 
Result so far: 8350.85
Subtracting 385 from 440 leaves us with 55.
Since there are no more digits in the dividend, we add a zero to the remainder making it 550, and continue the process.

Moving on to step 9:
If we divide 550 by 77, we get 7 and a remainder of 11.
The next digit of our result is 7. 
Result so far: 8350.857
If we take 539 away from 550, we end up with 11.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

On to step 10:
If we divide 110 by 77, we get 1 and a remainder of 33.
Write down 1 as next digit of the result. 
Result so far: 8350.8571
If we subtract 77 from 110, we get 33.
Since there are no more digits in the dividend, we add a zero to the remainder making it 330, and continue the process.

Let's proceed to step 11:
77 can be fit into 330 4 times, resulting in a remainder of 22.
The next digit of our result is 4. 
Result so far: 8350.85714
Subtract 308 from 330 to get 22.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

Step 12:
77 can be fit into 220 2 times, resulting in a remainder of 66.
Write down 2 as next digit of the result. 
Result so far: 8350.857142
The remainder is 66 after subtracting 154 from 220.
Since there are no more digits in the dividend, we add a zero to the remainder making it 660, and continue the process.

Step 13:
660 divided by 77 is 8 with a remainder of 44.
Write down 8 as next digit of the result. 
Result so far: 8350.8571428
If we take 616 away from 660, we end up with 44.
Since there are no more digits in the dividend, we add a zero to the remainder making it 440, and continue the process.

Going ahead to step 14:
If we divide 440 by 77, we get 5 and a remainder of 55.
Put 5 as the next digit of the answer. 
Result so far: 8350.85714285
Deduct 385 from 440 and we're left with 55.
Since there are no more digits in the dividend, we add a zero to the remainder making it 550, and continue the process.

The final outcome is 8350.85714285, with a leftover of 5.5e-08.