We're dividing 766393 by 80 
We want to figure out the number of times 766393 can be divided by 80.

On to step 1:
If we divide 7 by 80, we get 0 and a remainder of 7.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 7 and we're left with 7.
Append the next digit (6) from the dividend to 7 and continue with: 76 / 80

Step 2:
76 divided by 80 is 0 with a remainder of 76.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 76, we end up with 76.
Take the next digit (6) from the dividend and append it to 76, then repeat: 766 / 80

Step 3:
The number 80 fits into 766 9 times, leaving a remainder of 46.
Use 9 as the next digit of our solution. 
Result so far: 9.0
If we take 720 away from 766, we end up with 46.
Grab the next digit (3) from the dividend, add it to 46, then carry on: 463 / 80

Step 4:
80 goes into 463 5 times with a remainder of 63.
Write down 5 as next digit of the result. 
Result so far: 95.0
The remainder is 63 after subtracting 400 from 463.
Append the next digit (9) from the dividend to 63 and continue with: 639 / 80

Going ahead to step 5:
80 goes into 639 7 times with a remainder of 79.
The number 7 becomes the next digit in our result. 
Result so far: 957.0
The remainder is 79 after subtracting 560 from 639.
Include the next digit (3) from the dividend after 79, then repeat: 793 / 80

Let's proceed to step 6:
80 can be fit into 793 9 times, resulting in a remainder of 73.
Put 9 as the next digit of the answer. 
Result so far: 9579.0
If we subtract 720 from 793, we get 73.
Since there are no more digits in the dividend, we add a zero to the remainder making it 730, and continue the process.

Advancing to step 7:
When dividing 730 by 80, we get 9 with a remainder of 10.
Write down 9 as next digit of the result. 
Result so far: 9579.9
Deduct 720 from 730 and we're left with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

On to step 8:
When dividing 100 by 80, we get 1 with a remainder of 20.
The next digit of our result is 1. 
Result so far: 9579.91
Deduct 80 from 100 and we're left 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.

Going ahead to step 9:
When dividing 200 by 80, we get 2 with a remainder of 40.
Put 2 as the next digit of the answer. 
Result so far: 9579.912
If we take 160 away from 200, we end up 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.

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: 9579.9125
The remainder is 0 after subtracting 400 from 400.
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:
If we divide 0 by 80, we get 0 and a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 9579.9125
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.

On to step 12:
When dividing 0 by 80, we get 0 with a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 9579.9125
Deduct 0 from 0 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.

The final outcome is 9579.9125, with a leftover of 0.0.