Let's divide 439170 by 12
We want to figure out the number of times 439170 can be divided by 12.

Advancing to step 1:
12 goes into 4 0 times with a remainder of 4.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 4, we get 4.
Include the next digit (3) from the dividend after 4, then repeat: 43 / 12

Moving on to step 2:
When dividing 43 by 12, we get 3 with a remainder of 7.
Write down 3 as next digit of the result. 
Result so far: 3.0
If we subtract 36 from 43, we get 7.
Append the next digit (9) from the dividend to 7 and continue with: 79 / 12

Going ahead to step 3:
If we divide 79 by 12, we get 6 and a remainder of 7.
Put 6 as the next digit of the answer. 
Result so far: 36.0
Deduct 72 from 79 and we're left with 7.
Fetch the next digit (1) from the dividend, attach it to 7 and continue: 71 / 12

Going ahead to step 4:
The number 12 fits into 71 5 times, leaving a remainder of 11.
The number 5 becomes the next digit in our result. 
Result so far: 365.0
The remainder is 11 after subtracting 60 from 71.
Append the next digit (7) from the dividend to 11 and continue with: 117 / 12

Let's proceed to step 5:
12 goes into 117 9 times with a remainder of 9.
The next digit of our result is 9. 
Result so far: 3659.0
If we take 108 away from 117, we end up with 9.
Grab the next digit (0) from the dividend, add it to 9, then carry on: 90 / 12

Going ahead to step 6:
12 goes into 90 7 times with a remainder of 6.
Write down 7 as next digit of the result. 
Result so far: 36597.0
Subtract 84 from 90 to get 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Moving on to step 7:
When dividing 60 by 12, we get 5 with a remainder of 0.
Write down 5 as next digit of the result. 
Result so far: 36597.5
The remainder is 0 after subtracting 60 from 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Going ahead to step 8:
If we divide 0 by 12, we get 0 and a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 36597.5
Subtracting 0 from 0 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 9:
0 divided by 12 is 0 with a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 36597.5
If we take 0 away from 0, we end up 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 36597.5 with a remaining 0.0.