We're dividing 144942 by 45 
We want to divide 144942 by 45.

Going ahead to step 1:
The number 45 fits into 1 0 times, leaving a remainder of 1.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 1 and we're left with 1.
Grab the next digit (4) from the dividend, add it to 1, then carry on: 14 / 45

On to step 2:
The number 45 fits into 14 0 times, leaving a remainder of 14.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 14, we end up with 14.
Grab the next digit (4) from the dividend, add it to 14, then carry on: 144 / 45

On to step 3:
The number 45 fits into 144 3 times, leaving a remainder of 9.
The number 3 becomes the next digit in our result. 
Result so far: 3.0
The remainder is 9 after subtracting 135 from 144.
Fetch the next digit (9) from the dividend, attach it to 9 and continue: 99 / 45

On to step 4:
The number 45 fits into 99 2 times, leaving a remainder of 9.
The next digit of our result is 2. 
Result so far: 32.0
The remainder is 9 after subtracting 90 from 99.
Take the next digit (4) from the dividend and append it to 9, then repeat: 94 / 45

Let's proceed to step 5:
45 can be fit into 94 2 times, resulting in a remainder of 4.
The number 2 becomes the next digit in our result. 
Result so far: 322.0
If we subtract 90 from 94, we get 4.
Bring next digit (2) of the dividend behind the 4 and repeat the process: 42 / 45

Going ahead to step 6:
45 can be fit into 42 0 times, resulting in a remainder of 42.
Use 0 as the next digit of our solution. 
Result so far: 3220.0
Deduct 0 from 42 and we're left with 42.
Since there are no more digits in the dividend, we add a zero to the remainder making it 420, and continue the process.

Going ahead to step 7:
The number 45 fits into 420 9 times, leaving a remainder of 15.
Record the quotient 9 as the next digit in the result. 
Result so far: 3220.9
The remainder is 15 after subtracting 405 from 420.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

On to step 8:
150 divided by 45 is 3 with a remainder of 15.
The number 3 becomes the next digit in our result. 
Result so far: 3220.93
Subtract 135 from 150 to get 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

On to step 9:
45 can be fit into 150 3 times, resulting in a remainder of 15.
The next digit of our result is 3. 
Result so far: 3220.933
Subtracting 135 from 150 leaves us with 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

The final result is 3220.933 with a remainder of 0.0015.