728513 divided by 45 
We want to figure out the number of times 728513 can be divided by 45.

Let's proceed to step 1:
The number 45 fits into 7 0 times, leaving a remainder of 7.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 7 leaves us with 7.
Fetch the next digit (2) from the dividend, attach it to 7 and continue: 72 / 45

Let's proceed to step 2:
72 divided by 45 is 1 with a remainder of 27.
The next digit of our result is 1. 
Result so far: 1.0
If we take 45 away from 72, we end up with 27.
Include the next digit (8) from the dividend after 27, then repeat: 278 / 45

Let's proceed to step 3:
The number 45 fits into 278 6 times, leaving a remainder of 8.
The number 6 becomes the next digit in our result. 
Result so far: 16.0
Deduct 270 from 278 and we're left with 8.
Append the next digit (5) from the dividend to 8 and continue with: 85 / 45

On to step 4:
45 can be fit into 85 1 times, resulting in a remainder of 40.
The number 1 becomes the next digit in our result. 
Result so far: 161.0
If we subtract 45 from 85, we get 40.
Fetch the next digit (1) from the dividend, attach it to 40 and continue: 401 / 45

Step 5:
If we divide 401 by 45, we get 8 and a remainder of 41.
Use 8 as the next digit of our solution. 
Result so far: 1618.0
Deduct 360 from 401 and we're left with 41.
Take the next digit (3) from the dividend and append it to 41, then repeat: 413 / 45

Going ahead to step 6:
If we divide 413 by 45, we get 9 and a remainder of 8.
Use 9 as the next digit of our solution. 
Result so far: 16189.0
Subtract 405 from 413 to get 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Advancing to step 7:
45 goes into 80 1 times with a remainder of 35.
The number 1 becomes the next digit in our result. 
Result so far: 16189.1
If we take 45 away from 80, we end up with 35.
Since there are no more digits in the dividend, we add a zero to the remainder making it 350, and continue the process.

Advancing to step 8:
When dividing 350 by 45, we get 7 with a remainder of 35.
Record the quotient 7 as the next digit in the result. 
Result so far: 16189.17
Deduct 315 from 350 and we're left with 35.
Since there are no more digits in the dividend, we add a zero to the remainder making it 350, and continue the process.

Step 9:
45 goes into 350 7 times with a remainder of 35.
Put 7 as the next digit of the answer. 
Result so far: 16189.177
Deduct 315 from 350 and we're left with 35.
Since there are no more digits in the dividend, we add a zero to the remainder making it 350, and continue the process.

After the division, we end up with 16189.177 and a remainder of 0.0035.