We're dividing 120728 by 45 
We want to divide 120728 by 45.

On to step 1:
The number 45 fits into 1 0 times, leaving a remainder of 1.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 1 to get 1.
Bring next digit (2) of the dividend behind the 1 and repeat the process: 12 / 45

On to step 2:
When dividing 12 by 45, we get 0 with a remainder of 12.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 12, we get 12.
Append the next digit (0) from the dividend to 12 and continue with: 120 / 45

On to step 3:
When dividing 120 by 45, we get 2 with a remainder of 30.
Use 2 as the next digit of our solution. 
Result so far: 2.0
Deduct 90 from 120 and we're left with 30.
Take the next digit (7) from the dividend and append it to 30, then repeat: 307 / 45

Let's proceed to step 4:
45 can be fit into 307 6 times, resulting in a remainder of 37.
Use 6 as the next digit of our solution. 
Result so far: 26.0
Subtract 270 from 307 to get 37.
Grab the next digit (2) from the dividend, add it to 37, then carry on: 372 / 45

Advancing to step 5:
45 goes into 372 8 times with a remainder of 12.
The number 8 becomes the next digit in our result. 
Result so far: 268.0
If we take 360 away from 372, we end up with 12.
Include the next digit (8) from the dividend after 12, then repeat: 128 / 45

Going ahead to step 6:
128 divided by 45 is 2 with a remainder of 38.
Record the quotient 2 as the next digit in the result. 
Result so far: 2682.0
The remainder is 38 after subtracting 90 from 128.
Since there are no more digits in the dividend, we add a zero to the remainder making it 380, and continue the process.

Step 7:
When dividing 380 by 45, we get 8 with a remainder of 20.
The next digit of our result is 8. 
Result so far: 2682.8
If we subtract 360 from 380, we get 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Going ahead to step 8:
200 divided by 45 is 4 with a remainder of 20.
Write down 4 as next digit of the result. 
Result so far: 2682.84
Deduct 180 from 200 and we're left with 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Step 9:
45 can be fit into 200 4 times, resulting in a remainder of 20.
Use 4 as the next digit of our solution. 
Result so far: 2682.844
Subtract 180 from 200 to get 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

The final result is 2682.844 with a remainder of 0.002.