We're dividing 781440 by 77 
Let's see how many times 77 fits into 781440.

Going ahead to step 1:
When dividing 7 by 77, we get 0 with a remainder of 7.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 7 to get 7.
Grab the next digit (8) from the dividend, add it to 7, then carry on: 78 / 77

Going ahead to step 2:
If we divide 78 by 77, we get 1 and a remainder of 1.
Write down 1 as next digit of the result. 
Result so far: 1.0
If we subtract 77 from 78, we get 1.
Bring next digit (1) of the dividend behind the 1 and repeat the process: 11 / 77

Moving on to step 3:
11 divided by 77 is 0 with a remainder of 11.
Record the quotient 0 as the next digit in the result. 
Result so far: 10.0
Deduct 0 from 11 and we're left with 11.
Fetch the next digit (4) from the dividend, attach it to 11 and continue: 114 / 77

Advancing to step 4:
If we divide 114 by 77, we get 1 and a remainder of 37.
Put 1 as the next digit of the answer. 
Result so far: 101.0
If we take 77 away from 114, we end up with 37.
Include the next digit (4) from the dividend after 37, then repeat: 374 / 77

Going ahead to step 5:
77 goes into 374 4 times with a remainder of 66.
Record the quotient 4 as the next digit in the result. 
Result so far: 1014.0
The remainder is 66 after subtracting 308 from 374.
Bring next digit (0) of the dividend behind the 66 and repeat the process: 660 / 77

Step 6:
When dividing 660 by 77, we get 8 with a remainder of 44.
Record the quotient 8 as the next digit in the result. 
Result so far: 10148.0
Subtracting 616 from 660 leaves us 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.

Step 7:
440 divided by 77 is 5 with a remainder of 55.
The next digit of our result is 5. 
Result so far: 10148.5
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.

Step 8:
If we divide 550 by 77, we get 7 and a remainder of 11.
Use 7 as the next digit of our solution. 
Result so far: 10148.57
The remainder is 11 after subtracting 539 from 550.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

Step 9:
77 goes into 110 1 times with a remainder of 33.
The next digit of our result is 1. 
Result so far: 10148.571
Subtract 77 from 110 to 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.

Step 10:
330 divided by 77 is 4 with a remainder of 22.
The next digit of our result is 4. 
Result so far: 10148.5714
If we subtract 308 from 330, we 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.

Advancing to step 11:
220 divided by 77 is 2 with a remainder of 66.
Use 2 as the next digit of our solution. 
Result so far: 10148.57142
If we subtract 154 from 220, we get 66.
Since there are no more digits in the dividend, we add a zero to the remainder making it 660, and continue the process.

Step 12:
660 divided by 77 is 8 with a remainder of 44.
Use 8 as the next digit of our solution. 
Result so far: 10148.571428
The remainder is 44 after subtracting 616 from 660.
Since there are no more digits in the dividend, we add a zero to the remainder making it 440, and continue the process.

Moving on to step 13:
77 can be fit into 440 5 times, resulting in a remainder of 55.
Put 5 as the next digit of the answer. 
Result so far: 10148.5714285
If we subtract 385 from 440, we get 55.
Since there are no more digits in the dividend, we add a zero to the remainder making it 550, and continue the process.

Advancing to step 14:
77 can be fit into 550 7 times, resulting in a remainder of 11.
Put 7 as the next digit of the answer. 
Result so far: 10148.57142857
Deduct 539 from 550 and we're left 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.

After the division, we end up with 10148.57142857 and a remainder of 1.1e-08.