We divide 660576 by 45
Let's see how many times 45 fits into 660576.

Moving on to step 1:
If we divide 6 by 45, we get 0 and a remainder of 6.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 6, we get 6.
Include the next digit (6) from the dividend after 6, then repeat: 66 / 45

Advancing to step 2:
45 goes into 66 1 times with a remainder of 21.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
The remainder is 21 after subtracting 45 from 66.
Include the next digit (0) from the dividend after 21, then repeat: 210 / 45

Going ahead to step 3:
45 can be fit into 210 4 times, resulting in a remainder of 30.
Write down 4 as next digit of the result. 
Result so far: 14.0
The remainder is 30 after subtracting 180 from 210.
Fetch the next digit (5) from the dividend, attach it to 30 and continue: 305 / 45

Let's proceed to step 4:
If we divide 305 by 45, we get 6 and a remainder of 35.
Write down 6 as next digit of the result. 
Result so far: 146.0
If we take 270 away from 305, we end up with 35.
Append the next digit (7) from the dividend to 35 and continue with: 357 / 45

Step 5:
45 can be fit into 357 7 times, resulting in a remainder of 42.
The number 7 becomes the next digit in our result. 
Result so far: 1467.0
Subtracting 315 from 357 leaves us with 42.
Grab the next digit (6) from the dividend, add it to 42, then carry on: 426 / 45

Step 6:
45 can be fit into 426 9 times, resulting in a remainder of 21.
Use 9 as the next digit of our solution. 
Result so far: 14679.0
Subtract 405 from 426 to get 21.
Since there are no more digits in the dividend, we add a zero to the remainder making it 210, and continue the process.

Advancing to step 7:
If we divide 210 by 45, we get 4 and a remainder of 30.
Record the quotient 4 as the next digit in the result. 
Result so far: 14679.4
Subtracting 180 from 210 leaves us with 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Advancing to step 8:
300 divided by 45 is 6 with a remainder of 30.
Put 6 as the next digit of the answer. 
Result so far: 14679.46
Deduct 270 from 300 and we're left with 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Moving on to step 9:
When dividing 300 by 45, we get 6 with a remainder of 30.
The next digit of our result is 6. 
Result so far: 14679.466
Subtract 270 from 300 to get 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

After the division, we end up with 14679.466 and a remainder of 0.003.