278726 ÷ 12 
Our goal is to divide 278726 by 12.

Step 1:
The number 12 fits into 2 0 times, leaving a remainder of 2.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 2, we get 2.
Take the next digit (7) from the dividend and append it to 2, then repeat: 27 / 12

Moving on to step 2:
When dividing 27 by 12, we get 2 with a remainder of 3.
The number 2 becomes the next digit in our result. 
Result so far: 2.0
Deduct 24 from 27 and we're left with 3.
Include the next digit (8) from the dividend after 3, then repeat: 38 / 12

Step 3:
The number 12 fits into 38 3 times, leaving a remainder of 2.
The next digit of our result is 3. 
Result so far: 23.0
Subtracting 36 from 38 leaves us with 2.
Grab the next digit (7) from the dividend, add it to 2, then carry on: 27 / 12

Going ahead to step 4:
12 can be fit into 27 2 times, resulting in a remainder of 3.
Put 2 as the next digit of the answer. 
Result so far: 232.0
Deduct 24 from 27 and we're left with 3.
Take the next digit (2) from the dividend and append it to 3, then repeat: 32 / 12

Let's proceed to step 5:
When dividing 32 by 12, we get 2 with a remainder of 8.
The next digit of our result is 2. 
Result so far: 2322.0
If we take 24 away from 32, we end up with 8.
Fetch the next digit (6) from the dividend, attach it to 8 and continue: 86 / 12

Step 6:
12 goes into 86 7 times with a remainder of 2.
Write down 7 as next digit of the result. 
Result so far: 23227.0
If we subtract 84 from 86, 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.

Step 7:
12 can be fit into 20 1 times, resulting in a remainder of 8.
Record the quotient 1 as the next digit in the result. 
Result so far: 23227.1
Deduct 12 from 20 and we're left 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.

Step 8:
12 can be fit into 80 6 times, resulting in a remainder of 8.
The number 6 becomes the next digit in our result. 
Result so far: 23227.16
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.

Step 9:
If we divide 80 by 12, we get 6 and a remainder of 8.
Write down 6 as next digit of the result. 
Result so far: 23227.166
If we take 72 away from 80, 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.

The final result is 23227.166 with a remainder of 0.0008.