We look at the division of 12384 by 78 
Let's see how many times 78 fits into 12384.

Moving on to step 1:
1 divided by 78 is 0 with a remainder of 1.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 1, we get 1.
Append the next digit (2) from the dividend to 1 and continue with: 12 / 78

Moving on to step 2:
If we divide 12 by 78, we get 0 and a remainder of 12.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 12, we end up with 12.
Fetch the next digit (3) from the dividend, attach it to 12 and continue: 123 / 78

Going ahead to step 3:
78 goes into 123 1 times with a remainder of 45.
Write down 1 as next digit of the result. 
Result so far: 1.0
If we take 78 away from 123, we end up with 45.
Bring next digit (8) of the dividend behind the 45 and repeat the process: 458 / 78

Advancing to step 4:
78 goes into 458 5 times with a remainder of 68.
The number 5 becomes the next digit in our result. 
Result so far: 15.0
Subtract 390 from 458 to get 68.
Fetch the next digit (4) from the dividend, attach it to 68 and continue: 684 / 78

Step 5:
The number 78 fits into 684 8 times, leaving a remainder of 60.
Write down 8 as next digit of the result. 
Result so far: 158.0
Deduct 624 from 684 and we're left with 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Step 6:
When dividing 600 by 78, we get 7 with a remainder of 54.
The next digit of our result is 7. 
Result so far: 158.7
If we take 546 away from 600, we end up with 54.
Since there are no more digits in the dividend, we add a zero to the remainder making it 540, and continue the process.

Advancing to step 7:
78 can be fit into 540 6 times, resulting in a remainder of 72.
Write down 6 as next digit of the result. 
Result so far: 158.76
If we take 468 away from 540, we end up with 72.
Since there are no more digits in the dividend, we add a zero to the remainder making it 720, and continue the process.

Let's proceed to step 8:
The number 78 fits into 720 9 times, leaving a remainder of 18.
Put 9 as the next digit of the answer. 
Result so far: 158.769
If we subtract 702 from 720, we get 18.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

Step 9:
If we divide 180 by 78, we get 2 and a remainder of 24.
The next digit of our result is 2. 
Result so far: 158.7692
Deduct 156 from 180 and we're left with 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Advancing to step 10:
The number 78 fits into 240 3 times, leaving a remainder of 6.
The next digit of our result is 3. 
Result so far: 158.76923
If we subtract 234 from 240, we 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.

Going ahead to step 11:
78 goes into 60 0 times with a remainder of 60.
Write down 0 as next digit of the result. 
Result so far: 158.76923
Subtract 0 from 60 to get 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Let's proceed to step 12:
The number 78 fits into 600 7 times, leaving a remainder of 54.
The next digit of our result is 7. 
Result so far: 158.7692307
The remainder is 54 after subtracting 546 from 600.
Since there are no more digits in the dividend, we add a zero to the remainder making it 540, and continue the process.

Advancing to step 13:
The number 78 fits into 540 6 times, leaving a remainder of 72.
Write down 6 as next digit of the result. 
Result so far: 158.76923076
Subtract 468 from 540 to get 72.
Since there are no more digits in the dividend, we add a zero to the remainder making it 720, and continue the process.

The final result is 158.76923076 with a remainder of 7.2e-08.