We divide 78135 by 80
We want to figure out the number of times 78135 can be divided by 80.

Step 1:
If we divide 7 by 80, we get 0 and a remainder of 7.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 7 leaves us with 7.
Include the next digit (8) from the dividend after 7, then repeat: 78 / 80

On to step 2:
80 can be fit into 78 0 times, resulting in a remainder of 78.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 78 and we're left with 78.
Take the next digit (1) from the dividend and append it to 78, then repeat: 781 / 80

Going ahead to step 3:
80 can be fit into 781 9 times, resulting in a remainder of 61.
Put 9 as the next digit of the answer. 
Result so far: 9.0
If we take 720 away from 781, we end up with 61.
Fetch the next digit (3) from the dividend, attach it to 61 and continue: 613 / 80

Going ahead to step 4:
When dividing 613 by 80, we get 7 with a remainder of 53.
The number 7 becomes the next digit in our result. 
Result so far: 97.0
The remainder is 53 after subtracting 560 from 613.
Bring next digit (5) of the dividend behind the 53 and repeat the process: 535 / 80

Going ahead to step 5:
80 goes into 535 6 times with a remainder of 55.
The next digit of our result is 6. 
Result so far: 976.0
Deduct 480 from 535 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.

Step 6:
When dividing 550 by 80, we get 6 with a remainder of 70.
Use 6 as the next digit of our solution. 
Result so far: 976.6
If we take 480 away from 550, we end up 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.

Step 7:
If we divide 700 by 80, we get 8 and a remainder of 60.
Use 8 as the next digit of our solution. 
Result so far: 976.68
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.

Step 8:
600 divided by 80 is 7 with a remainder of 40.
The number 7 becomes the next digit in our result. 
Result so far: 976.687
Subtracting 560 from 600 leaves us 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 9:
The number 80 fits into 400 5 times, leaving a remainder of 0.
The next digit of our result is 5. 
Result so far: 976.6875
Subtract 400 from 400 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 10:
80 can be fit into 0 0 times, resulting in a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 976.6875
If we take 0 away from 0, we end up 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.

Let's proceed to step 11:
The number 80 fits into 0 0 times, leaving a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 976.6875
If we subtract 0 from 0, we 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.

After the division, we end up with 976.6875 and a remainder of 0.0.