We divide 87170 by 78
We're looking to find how many times 78 goes into 87170.

On to step 1:
78 can be fit into 8 0 times, resulting in a remainder of 8.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 8 and we're left with 8.
Append the next digit (7) from the dividend to 8 and continue with: 87 / 78

Moving on to step 2:
87 divided by 78 is 1 with a remainder of 9.
Put 1 as the next digit of the answer. 
Result so far: 1.0
The remainder is 9 after subtracting 78 from 87.
Bring next digit (1) of the dividend behind the 9 and repeat the process: 91 / 78

Moving on to step 3:
When dividing 91 by 78, we get 1 with a remainder of 13.
Use 1 as the next digit of our solution. 
Result so far: 11.0
The remainder is 13 after subtracting 78 from 91.
Include the next digit (7) from the dividend after 13, then repeat: 137 / 78

Going ahead to step 4:
When dividing 137 by 78, we get 1 with a remainder of 59.
The number 1 becomes the next digit in our result. 
Result so far: 111.0
The remainder is 59 after subtracting 78 from 137.
Fetch the next digit (0) from the dividend, attach it to 59 and continue: 590 / 78

Let's proceed to step 5:
78 can be fit into 590 7 times, resulting in a remainder of 44.
The next digit of our result is 7. 
Result so far: 1117.0
If we subtract 546 from 590, we get 44.
Since there are no more digits in the dividend, we add a zero to the remainder making it 440, and continue the process.

Let's proceed to step 6:
When dividing 440 by 78, we get 5 with a remainder of 50.
Write down 5 as next digit of the result. 
Result so far: 1117.5
The remainder is 50 after subtracting 390 from 440.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Going ahead to step 7:
78 can be fit into 500 6 times, resulting in a remainder of 32.
The next digit of our result is 6. 
Result so far: 1117.56
If we subtract 468 from 500, we get 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

Moving on to step 8:
320 divided by 78 is 4 with a remainder of 8.
Record the quotient 4 as the next digit in the result. 
Result so far: 1117.564
Subtract 312 from 320 to get 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Going ahead to step 9:
78 can be fit into 80 1 times, resulting in a remainder of 2.
Put 1 as the next digit of the answer. 
Result so far: 1117.5641
If we subtract 78 from 80, we get 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Moving on to step 10:
If we divide 20 by 78, we get 0 and a remainder of 20.
Write down 0 as next digit of the result. 
Result so far: 1117.5641
The remainder is 20 after subtracting 0 from 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Advancing to step 11:
If we divide 200 by 78, we get 2 and a remainder of 44.
Record the quotient 2 as the next digit in the result. 
Result so far: 1117.564102
Subtract 156 from 200 to get 44.
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 12:
440 divided by 78 is 5 with a remainder of 50.
Record the quotient 5 as the next digit in the result. 
Result so far: 1117.5641025
Deduct 390 from 440 and we're left 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.

Step 13:
78 goes into 500 6 times with a remainder of 32.
Write down 6 as next digit of the result. 
Result so far: 1117.56410256
If we take 468 away from 500, we end up with 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

The final result is 1117.56410256 with a remainder of 3.2e-08.