We look at the division of 560643 by 45 
We're looking to find how many times 45 goes into 560643.

Moving on to step 1:
If we divide 5 by 45, we get 0 and a remainder of 5.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 5, we get 5.
Grab the next digit (6) from the dividend, add it to 5, then carry on: 56 / 45

Advancing to step 2:
56 divided by 45 is 1 with a remainder of 11.
The next digit of our result is 1. 
Result so far: 1.0
Subtract 45 from 56 to get 11.
Fetch the next digit (0) from the dividend, attach it to 11 and continue: 110 / 45

On to step 3:
When dividing 110 by 45, we get 2 with a remainder of 20.
The number 2 becomes the next digit in our result. 
Result so far: 12.0
Subtracting 90 from 110 leaves us with 20.
Append the next digit (6) from the dividend to 20 and continue with: 206 / 45

Advancing to step 4:
When dividing 206 by 45, we get 4 with a remainder of 26.
Write down 4 as next digit of the result. 
Result so far: 124.0
The remainder is 26 after subtracting 180 from 206.
Grab the next digit (4) from the dividend, add it to 26, then carry on: 264 / 45

On to step 5:
If we divide 264 by 45, we get 5 and a remainder of 39.
The number 5 becomes the next digit in our result. 
Result so far: 1245.0
Deduct 225 from 264 and we're left with 39.
Fetch the next digit (3) from the dividend, attach it to 39 and continue: 393 / 45

On to step 6:
393 divided by 45 is 8 with a remainder of 33.
Use 8 as the next digit of our solution. 
Result so far: 12458.0
The remainder is 33 after subtracting 360 from 393.
Since there are no more digits in the dividend, we add a zero to the remainder making it 330, and continue the process.

Let's proceed to step 7:
When dividing 330 by 45, we get 7 with a remainder of 15.
Record the quotient 7 as the next digit in the result. 
Result so far: 12458.7
If we subtract 315 from 330, we get 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

On to step 8:
45 can be fit into 150 3 times, resulting in a remainder of 15.
Put 3 as the next digit of the answer. 
Result so far: 12458.73
If we take 135 away from 150, we end up with 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

On to step 9:
The number 45 fits into 150 3 times, leaving a remainder of 15.
Write down 3 as next digit of the result. 
Result so far: 12458.733
Subtracting 135 from 150 leaves us with 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

Our division results in 12458.733 with a remaining 0.0015.