781165 ÷ 80 
We want to figure out the number of times 781165 can be divided by 80.

Going ahead to step 1:
80 goes into 7 0 times with a remainder of 7.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 7, we get 7.
Take the next digit (8) from the dividend and append it to 7, then repeat: 78 / 80

Going ahead to step 2:
The number 80 fits into 78 0 times, leaving a remainder of 78.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 78, we end up with 78.
Grab the next digit (1) from the dividend, add it to 78, then carry on: 781 / 80

Going ahead to step 3:
80 can be fit into 781 9 times, resulting in a remainder of 61.
The number 9 becomes the next digit in our result. 
Result so far: 9.0
Subtracting 720 from 781 leaves us with 61.
Grab the next digit (1) from the dividend, add it to 61, then carry on: 611 / 80

Let's proceed to step 4:
The number 80 fits into 611 7 times, leaving a remainder of 51.
Write down 7 as next digit of the result. 
Result so far: 97.0
If we take 560 away from 611, we end up with 51.
Append the next digit (6) from the dividend to 51 and continue with: 516 / 80

Let's proceed to step 5:
The number 80 fits into 516 6 times, leaving a remainder of 36.
Use 6 as the next digit of our solution. 
Result so far: 976.0
The remainder is 36 after subtracting 480 from 516.
Include the next digit (5) from the dividend after 36, then repeat: 365 / 80

On to step 6:
365 divided by 80 is 4 with a remainder of 45.
Write down 4 as next digit of the result. 
Result so far: 9764.0
Subtract 320 from 365 to get 45.
Since there are no more digits in the dividend, we add a zero to the remainder making it 450, and continue the process.

Moving on to step 7:
80 can be fit into 450 5 times, resulting in a remainder of 50.
The next digit of our result is 5. 
Result so far: 9764.5
Subtracting 400 from 450 leaves us with 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Moving on to step 8:
The number 80 fits into 500 6 times, leaving a remainder of 20.
Put 6 as the next digit of the answer. 
Result so far: 9764.56
Subtracting 480 from 500 leaves us with 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

On to step 9:
200 divided by 80 is 2 with a remainder of 40.
Use 2 as the next digit of our solution. 
Result so far: 9764.562
Deduct 160 from 200 and we're left with 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Moving on to step 10:
80 can be fit into 400 5 times, resulting in a remainder of 0.
The next digit of our result is 5. 
Result so far: 9764.5625
Deduct 400 from 400 and we're left with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

On to step 11:
When dividing 0 by 80, we get 0 with a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 9764.5625
Subtract 0 from 0 to get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Going ahead to step 12:
80 goes into 0 0 times with a remainder of 0.
The next digit of our result is 0. 
Result so far: 9764.5625
Subtracting 0 from 0 leaves us with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Our division results in 9764.5625 with a remaining 0.0.