We look at the division of 720729 by 45 
We want to divide 720729 by 45.

Step 1:
If we divide 7 by 45, we get 0 and a remainder of 7.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 7 to get 7.
Grab the next digit (2) from the dividend, add it to 7, then carry on: 72 / 45

Advancing to step 2:
If we divide 72 by 45, we get 1 and a remainder of 27.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
Subtract 45 from 72 to get 27.
Take the next digit (0) from the dividend and append it to 27, then repeat: 270 / 45

Going ahead to step 3:
If we divide 270 by 45, we get 6 and a remainder of 0.
Use 6 as the next digit of our solution. 
Result so far: 16.0
The remainder is 0 after subtracting 270 from 270.
Include the next digit (7) from the dividend after 0, then repeat: 7 / 45

Going ahead to step 4:
The number 45 fits into 7 0 times, leaving a remainder of 7.
The number 0 becomes the next digit in our result. 
Result so far: 160.0
Deduct 0 from 7 and we're left with 7.
Append the next digit (2) from the dividend to 7 and continue with: 72 / 45

Moving on to step 5:
When dividing 72 by 45, we get 1 with a remainder of 27.
Put 1 as the next digit of the answer. 
Result so far: 1601.0
If we subtract 45 from 72, we get 27.
Include the next digit (9) from the dividend after 27, then repeat: 279 / 45

On to step 6:
45 can be fit into 279 6 times, resulting in a remainder of 9.
Record the quotient 6 as the next digit in the result. 
Result so far: 16016.0
If we subtract 270 from 279, we get 9.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

Going ahead to step 7:
The number 45 fits into 90 2 times, leaving a remainder of 0.
Use 2 as the next digit of our solution. 
Result so far: 16016.2
Subtract 90 from 90 to get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Moving on to step 8:
When dividing 0 by 45, we get 0 with a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 16016.2
The remainder is 0 after subtracting 0 from 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Let's proceed to step 9:
If we divide 0 by 45, we get 0 and a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 16016.2
Deduct 0 from 0 and we're left 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 final result is 16016.2 with a remainder of 0.0.