Let's divide 86709 by 78
We're looking to find how many times 78 goes into 86709.

On to step 1:
78 goes into 8 0 times with a remainder of 8.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 8, we get 8.
Bring next digit (6) of the dividend behind the 8 and repeat the process: 86 / 78

Step 2:
78 goes into 86 1 times with a remainder of 8.
The next digit of our result is 1. 
Result so far: 1.0
The remainder is 8 after subtracting 78 from 86.
Include the next digit (7) from the dividend after 8, then repeat: 87 / 78

Advancing to step 3:
87 divided by 78 is 1 with a remainder of 9.
The next digit of our result is 1. 
Result so far: 11.0
The remainder is 9 after subtracting 78 from 87.
Grab the next digit (0) from the dividend, add it to 9, then carry on: 90 / 78

Moving on to step 4:
78 goes into 90 1 times with a remainder of 12.
The next digit of our result is 1. 
Result so far: 111.0
Subtract 78 from 90 to get 12.
Append the next digit (9) from the dividend to 12 and continue with: 129 / 78

Let's proceed to step 5:
If we divide 129 by 78, we get 1 and a remainder of 51.
The number 1 becomes the next digit in our result. 
Result so far: 1111.0
If we subtract 78 from 129, we get 51.
Since there are no more digits in the dividend, we add a zero to the remainder making it 510, and continue the process.

Advancing to step 6:
78 can be fit into 510 6 times, resulting in a remainder of 42.
The number 6 becomes the next digit in our result. 
Result so far: 1111.6
Subtract 468 from 510 to get 42.
Since there are no more digits in the dividend, we add a zero to the remainder making it 420, and continue the process.

Going ahead to step 7:
78 can be fit into 420 5 times, resulting in a remainder of 30.
Write down 5 as next digit of the result. 
Result so far: 1111.65
The remainder is 30 after subtracting 390 from 420.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Advancing to step 8:
The number 78 fits into 300 3 times, leaving a remainder of 66.
The number 3 becomes the next digit in our result. 
Result so far: 1111.653
The remainder is 66 after subtracting 234 from 300.
Since there are no more digits in the dividend, we add a zero to the remainder making it 660, and continue the process.

Moving on to step 9:
78 can be fit into 660 8 times, resulting in a remainder of 36.
Use 8 as the next digit of our solution. 
Result so far: 1111.6538
If we subtract 624 from 660, we get 36.
Since there are no more digits in the dividend, we add a zero to the remainder making it 360, and continue the process.

Moving on to step 10:
78 goes into 360 4 times with a remainder of 48.
Record the quotient 4 as the next digit in the result. 
Result so far: 1111.65384
If we subtract 312 from 360, we get 48.
Since there are no more digits in the dividend, we add a zero to the remainder making it 480, and continue the process.

On to step 11:
The number 78 fits into 480 6 times, leaving a remainder of 12.
Write down 6 as next digit of the result. 
Result so far: 1111.653846
If we subtract 468 from 480, we get 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Going ahead to step 12:
120 divided by 78 is 1 with a remainder of 42.
The number 1 becomes the next digit in our result. 
Result so far: 1111.6538461
Deduct 78 from 120 and we're left with 42.
Since there are no more digits in the dividend, we add a zero to the remainder making it 420, and continue the process.

Moving on to step 13:
If we divide 420 by 78, we get 5 and a remainder of 30.
Write down 5 as next digit of the result. 
Result so far: 1111.65384615
The remainder is 30 after subtracting 390 from 420.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

In conclusion, the division gives 1111.65384615 with a balance of 3e-08.