We're dividing 408178 by 12 
We're looking to find how many times 12 goes into 408178.

Let's proceed to step 1:
12 goes into 4 0 times with a remainder of 4.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 4 to get 4.
Take the next digit (0) from the dividend and append it to 4, then repeat: 40 / 12

On to step 2:
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: 3.0
Deduct 36 from 40 and we're left with 4.
Include the next digit (8) from the dividend after 4, then repeat: 48 / 12

Going ahead to step 3:
The number 12 fits into 48 4 times, leaving a remainder of 0.
Write down 4 as next digit of the result. 
Result so far: 34.0
The remainder is 0 after subtracting 48 from 48.
Append the next digit (1) from the dividend to 0 and continue with: 1 / 12

Advancing to step 4:
If we divide 1 by 12, we get 0 and a remainder of 1.
The next digit of our result is 0. 
Result so far: 340.0
Subtracting 0 from 1 leaves us with 1.
Take the next digit (7) from the dividend and append it to 1, then repeat: 17 / 12

Step 5:
12 goes into 17 1 times with a remainder of 5.
The number 1 becomes the next digit in our result. 
Result so far: 3401.0
Subtracting 12 from 17 leaves us with 5.
Include the next digit (8) from the dividend after 5, then repeat: 58 / 12

Advancing to step 6:
The number 12 fits into 58 4 times, leaving a remainder of 10.
The number 4 becomes the next digit in our result. 
Result so far: 34014.0
The remainder is 10 after subtracting 48 from 58.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Going ahead to step 7:
100 divided by 12 is 8 with a remainder of 4.
The number 8 becomes the next digit in our result. 
Result so far: 34014.8
Subtracting 96 from 100 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.

On to step 8:
12 goes into 40 3 times with a remainder of 4.
Use 3 as the next digit of our solution. 
Result so far: 34014.83
Subtract 36 from 40 to get 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Moving on to step 9:
If we divide 40 by 12, we get 3 and a remainder of 4.
Use 3 as the next digit of our solution. 
Result so far: 34014.833
If we take 36 away from 40, we end up 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.

The quotient of the division is 34014.833, and the remainder is 0.0004.