We divide 781351 by 80
Our goal is to divide 781351 by 80.

Going ahead to step 1:
The number 80 fits into 7 0 times, leaving a remainder of 7.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 7, we end up with 7.
Take the next digit (8) from the dividend and append it to 7, then repeat: 78 / 80

On to step 2:
If we divide 78 by 80, we get 0 and a remainder of 78.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 78 after subtracting 0 from 78.
Append the next digit (1) from the dividend to 78 and continue with: 781 / 80

Let's proceed to step 3:
If we divide 781 by 80, we get 9 and a remainder of 61.
Put 9 as the next digit of the answer. 
Result so far: 9.0
If we subtract 720 from 781, we get 61.
Fetch the next digit (3) from the dividend, attach it to 61 and continue: 613 / 80

Moving on to step 4:
If we divide 613 by 80, we get 7 and a remainder of 53.
Use 7 as the next digit of our solution. 
Result so far: 97.0
Subtracting 560 from 613 leaves us with 53.
Include the next digit (5) from the dividend after 53, then repeat: 535 / 80

Moving on to step 5:
80 can be fit into 535 6 times, resulting in a remainder of 55.
Write down 6 as next digit of the result. 
Result so far: 976.0
Deduct 480 from 535 and we're left with 55.
Take the next digit (1) from the dividend and append it to 55, then repeat: 551 / 80

Going ahead to step 6:
80 can be fit into 551 6 times, resulting in a remainder of 71.
Put 6 as the next digit of the answer. 
Result so far: 9766.0
If we subtract 480 from 551, we get 71.
Since there are no more digits in the dividend, we add a zero to the remainder making it 710, and continue the process.

Advancing to step 7:
If we divide 710 by 80, we get 8 and a remainder of 70.
Put 8 as the next digit of the answer. 
Result so far: 9766.8
Deduct 640 from 710 and we're left with 70.
Since there are no more digits in the dividend, we add a zero to the remainder making it 700, and continue the process.

Let's proceed to step 8:
80 can be fit into 700 8 times, resulting in a remainder of 60.
Use 8 as the next digit of our solution. 
Result so far: 9766.88
Deduct 640 from 700 and we're left 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.

The quotient of the division is 9766.88, and the remainder is 0.06.