We're dividing 575516 by 45 
We want to figure out the number of times 575516 can be divided by 45.

Going ahead to step 1:
45 can be fit into 5 0 times, resulting in a remainder of 5.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 5 after subtracting 0 from 5.
Include the next digit (7) from the dividend after 5, then repeat: 57 / 45

Moving on to step 2:
When dividing 57 by 45, we get 1 with a remainder of 12.
Put 1 as the next digit of the answer. 
Result so far: 1.0
If we take 45 away from 57, we end up with 12.
Grab the next digit (5) from the dividend, add it to 12, then carry on: 125 / 45

Going ahead to step 3:
If we divide 125 by 45, we get 2 and a remainder of 35.
Put 2 as the next digit of the answer. 
Result so far: 12.0
Subtracting 90 from 125 leaves us with 35.
Take the next digit (5) from the dividend and append it to 35, then repeat: 355 / 45

Step 4:
If we divide 355 by 45, we get 7 and a remainder of 40.
The number 7 becomes the next digit in our result. 
Result so far: 127.0
Subtract 315 from 355 to get 40.
Include the next digit (1) from the dividend after 40, then repeat: 401 / 45

Going ahead to step 5:
The number 45 fits into 401 8 times, leaving a remainder of 41.
The next digit of our result is 8. 
Result so far: 1278.0
Subtracting 360 from 401 leaves us with 41.
Include the next digit (6) from the dividend after 41, then repeat: 416 / 45

Moving on to step 6:
45 goes into 416 9 times with a remainder of 11.
Put 9 as the next digit of the answer. 
Result so far: 12789.0
If we subtract 405 from 416, we get 11.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

Going ahead to step 7:
110 divided by 45 is 2 with a remainder of 20.
The next digit of our result is 2. 
Result so far: 12789.2
If we subtract 90 from 110, 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.

On to step 8:
45 goes into 200 4 times with a remainder of 20.
Put 4 as the next digit of the answer. 
Result so far: 12789.24
Subtracting 180 from 200 leaves us 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:
If we divide 200 by 45, we get 4 and a remainder of 20.
Record the quotient 4 as the next digit in the result. 
Result so far: 12789.244
Subtracting 180 from 200 leaves us 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.

The final outcome is 12789.244, with a leftover of 0.002.