We look at the division of 78856 by 18 
Let's see how many times 18 fits into 78856.

Advancing to step 1:
18 can be fit into 7 0 times, resulting in a remainder of 7.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 7 after subtracting 0 from 7.
Bring next digit (8) of the dividend behind the 7 and repeat the process: 78 / 18

Moving on to step 2:
18 can be fit into 78 4 times, resulting in a remainder of 6.
Put 4 as the next digit of the answer. 
Result so far: 4.0
Subtract 72 from 78 to get 6.
Include the next digit (8) from the dividend after 6, then repeat: 68 / 18

Moving on to step 3:
18 goes into 68 3 times with a remainder of 14.
The number 3 becomes the next digit in our result. 
Result so far: 43.0
Subtracting 54 from 68 leaves us with 14.
Include the next digit (5) from the dividend after 14, then repeat: 145 / 18

On to step 4:
18 goes into 145 8 times with a remainder of 1.
Record the quotient 8 as the next digit in the result. 
Result so far: 438.0
Deduct 144 from 145 and we're left with 1.
Include the next digit (6) from the dividend after 1, then repeat: 16 / 18

Moving on to step 5:
If we divide 16 by 18, we get 0 and a remainder of 16.
Use 0 as the next digit of our solution. 
Result so far: 4380.0
If we subtract 0 from 16, we get 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Advancing to step 6:
18 goes into 160 8 times with a remainder of 16.
The next digit of our result is 8. 
Result so far: 4380.8
Subtract 144 from 160 to get 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Let's proceed to step 7:
160 divided by 18 is 8 with a remainder of 16.
Write down 8 as next digit of the result. 
Result so far: 4380.88
The remainder is 16 after subtracting 144 from 160.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

The final outcome is 4380.88, with a leftover of 0.016.