We look at the division of 12144 by 20 
We want to figure out the number of times 12144 can be divided by 20.

Advancing to step 1:
When dividing 1 by 20, we get 0 with a remainder of 1.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 1 leaves us with 1.
Bring next digit (2) of the dividend behind the 1 and repeat the process: 12 / 20

Moving on to step 2:
If we divide 12 by 20, we get 0 and a remainder of 12.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 12, we end up with 12.
Fetch the next digit (1) from the dividend, attach it to 12 and continue: 121 / 20

Moving on to step 3:
20 can be fit into 121 6 times, resulting in a remainder of 1.
Record the quotient 6 as the next digit in the result. 
Result so far: 6.0
Subtract 120 from 121 to get 1.
Grab the next digit (4) from the dividend, add it to 1, then carry on: 14 / 20

Moving on to step 4:
The number 20 fits into 14 0 times, leaving a remainder of 14.
Write down 0 as next digit of the result. 
Result so far: 60.0
Subtracting 0 from 14 leaves us with 14.
Bring next digit (4) of the dividend behind the 14 and repeat the process: 144 / 20

On to step 5:
The number 20 fits into 144 7 times, leaving a remainder of 4.
Record the quotient 7 as the next digit in the result. 
Result so far: 607.0
If we subtract 140 from 144, we 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.

Let's proceed to step 6:
40 divided by 20 is 2 with a remainder of 0.
The next digit of our result is 2. 
Result so far: 607.2
Subtracting 40 from 40 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 20 is 0 with a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 607.2
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.

Advancing to step 8:
When dividing 0 by 20, we get 0 with a remainder of 0.
The next digit of our result is 0. 
Result so far: 607.2
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.

The quotient of the division is 607.2, and the remainder is 0.0.