We divide 384400 by 12
We want to divide 384400 by 12.

Step 1:
If we divide 3 by 12, we get 0 and a remainder of 3.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 3 and we're left with 3.
Append the next digit (8) from the dividend to 3 and continue with: 38 / 12

Advancing to step 2:
The number 12 fits into 38 3 times, leaving a remainder of 2.
Write down 3 as next digit of the result. 
Result so far: 3.0
The remainder is 2 after subtracting 36 from 38.
Take the next digit (4) from the dividend and append it to 2, then repeat: 24 / 12

Step 3:
12 can be fit into 24 2 times, resulting in a remainder of 0.
Put 2 as the next digit of the answer. 
Result so far: 32.0
The remainder is 0 after subtracting 24 from 24.
Grab the next digit (4) from the dividend, add it to 0, then carry on: 4 / 12

Let's proceed to step 4:
12 can be fit into 4 0 times, resulting in a remainder of 4.
The next digit of our result is 0. 
Result so far: 320.0
If we take 0 away from 4, we end up with 4.
Include the next digit (0) from the dividend after 4, then repeat: 40 / 12

Moving on to step 5:
12 can be fit into 40 3 times, resulting in a remainder of 4.
Put 3 as the next digit of the answer. 
Result so far: 3203.0
If we take 36 away from 40, we end up with 4.
Take the next digit (0) from the dividend and append it to 4, then repeat: 40 / 12

Going ahead to step 6:
The number 12 fits into 40 3 times, leaving a remainder of 4.
The number 3 becomes the next digit in our result. 
Result so far: 32033.0
Deduct 36 from 40 and we're left with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Going ahead to step 7:
The number 12 fits into 40 3 times, leaving a remainder of 4.
Write down 3 as next digit of the result. 
Result so far: 32033.3
Subtracting 36 from 40 leaves us with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Advancing to step 8:
12 can be fit into 40 3 times, resulting in a remainder of 4.
The next digit of our result is 3. 
Result so far: 32033.33
The remainder is 4 after subtracting 36 from 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

The final result is 32033.33 with a remainder of 0.004.