We're dividing 78986 by 12 
Our goal is to divide 78986 by 12.

Moving on to step 1:
If we divide 7 by 12, we get 0 and a remainder of 7.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 7, we end up with 7.
Take the next digit (8) from the dividend and append it to 7, then repeat: 78 / 12

Advancing to step 2:
The number 12 fits into 78 6 times, leaving a remainder of 6.
Put 6 as the next digit of the answer. 
Result so far: 6.0
The remainder is 6 after subtracting 72 from 78.
Grab the next digit (9) from the dividend, add it to 6, then carry on: 69 / 12

On to step 3:
12 goes into 69 5 times with a remainder of 9.
The number 5 becomes the next digit in our result. 
Result so far: 65.0
The remainder is 9 after subtracting 60 from 69.
Grab the next digit (8) from the dividend, add it to 9, then carry on: 98 / 12

Advancing to step 4:
When dividing 98 by 12, we get 8 with a remainder of 2.
Record the quotient 8 as the next digit in the result. 
Result so far: 658.0
If we subtract 96 from 98, we get 2.
Include the next digit (6) from the dividend after 2, then repeat: 26 / 12

Step 5:
12 can be fit into 26 2 times, resulting in a remainder of 2.
The next digit of our result is 2. 
Result so far: 6582.0
If we subtract 24 from 26, 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 6:
12 goes into 20 1 times with a remainder of 8.
The number 1 becomes the next digit in our result. 
Result so far: 6582.1
If we take 12 away from 20, we end up with 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Let's proceed to step 7:
80 divided by 12 is 6 with a remainder of 8.
Use 6 as the next digit of our solution. 
Result so far: 6582.16
Subtracting 72 from 80 leaves us with 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

On to step 8:
80 divided by 12 is 6 with a remainder of 8.
Use 6 as the next digit of our solution. 
Result so far: 6582.166
If we subtract 72 from 80, we 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.

The final result is 6582.166 with a remainder of 0.0008.