We're dividing 278123 by 12 
Let's see how many times 12 fits into 278123.

Step 1:
When dividing 2 by 12, we get 0 with a remainder of 2.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 2, we end up with 2.
Grab the next digit (7) from the dividend, add it to 2, then carry on: 27 / 12

Going ahead to step 2:
The number 12 fits into 27 2 times, leaving a remainder of 3.
Record the quotient 2 as the next digit in the result. 
Result so far: 2.0
If we take 24 away from 27, we end up with 3.
Fetch the next digit (8) from the dividend, attach it to 3 and continue: 38 / 12

Let's proceed to step 3:
The number 12 fits into 38 3 times, leaving a remainder of 2.
Put 3 as the next digit of the answer. 
Result so far: 23.0
Subtracting 36 from 38 leaves us with 2.
Append the next digit (1) from the dividend to 2 and continue with: 21 / 12

Step 4:
The number 12 fits into 21 1 times, leaving a remainder of 9.
The number 1 becomes the next digit in our result. 
Result so far: 231.0
Subtracting 12 from 21 leaves us with 9.
Bring next digit (2) of the dividend behind the 9 and repeat the process: 92 / 12

Let's proceed to step 5:
12 goes into 92 7 times with a remainder of 8.
The next digit of our result is 7. 
Result so far: 2317.0
Deduct 84 from 92 and we're left with 8.
Grab the next digit (3) from the dividend, add it to 8, then carry on: 83 / 12

Advancing to step 6:
When dividing 83 by 12, we get 6 with a remainder of 11.
The next digit of our result is 6. 
Result so far: 23176.0
If we subtract 72 from 83, we get 11.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

Step 7:
The number 12 fits into 110 9 times, leaving a remainder of 2.
Record the quotient 9 as the next digit in the result. 
Result so far: 23176.9
The remainder is 2 after subtracting 108 from 110.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Going ahead to step 8:
12 goes into 20 1 times with a remainder of 8.
Write down 1 as next digit of the result. 
Result so far: 23176.91
Subtracting 12 from 20 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.

Advancing to step 9:
80 divided by 12 is 6 with a remainder of 8.
The number 6 becomes the next digit in our result. 
Result so far: 23176.916
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.

Advancing to step 10:
The number 12 fits into 80 6 times, leaving a remainder of 8.
The next digit of our result is 6. 
Result so far: 23176.9166
Deduct 72 from 80 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.

After the division, we end up with 23176.9166 and a remainder of 8e-05.