We divide 12439 by 14
Let's see how many times 14 fits into 12439.

On to step 1:
14 goes into 1 0 times with a remainder of 1.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 1 to get 1.
Include the next digit (2) from the dividend after 1, then repeat: 12 / 14

On to step 2:
When dividing 12 by 14, we get 0 with a remainder of 12.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 12 after subtracting 0 from 12.
Include the next digit (4) from the dividend after 12, then repeat: 124 / 14

Step 3:
If we divide 124 by 14, we get 8 and a remainder of 12.
The number 8 becomes the next digit in our result. 
Result so far: 8.0
If we subtract 112 from 124, we get 12.
Fetch the next digit (3) from the dividend, attach it to 12 and continue: 123 / 14

On to step 4:
123 divided by 14 is 8 with a remainder of 11.
The next digit of our result is 8. 
Result so far: 88.0
The remainder is 11 after subtracting 112 from 123.
Append the next digit (9) from the dividend to 11 and continue with: 119 / 14

On to step 5:
119 divided by 14 is 8 with a remainder of 7.
The number 8 becomes the next digit in our result. 
Result so far: 888.0
Subtracting 112 from 119 leaves us with 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

Let's proceed to step 6:
If we divide 70 by 14, we get 5 and a remainder of 0.
The number 5 becomes the next digit in our result. 
Result so far: 888.5
Subtracting 70 from 70 leaves us with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

On to step 7:
0 divided by 14 is 0 with a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 888.5
Deduct 0 from 0 and we're left with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

On to step 8:
0 divided by 14 is 0 with a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 888.5
Deduct 0 from 0 and we're left with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Our division results in 888.5 with a remaining 0.0.