We divide 542543 by 45
We're looking to find how many times 45 goes into 542543.

Let's proceed to step 1:
45 goes into 5 0 times with a remainder of 5.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 5 to get 5.
Append the next digit (4) from the dividend to 5 and continue with: 54 / 45

Going ahead to step 2:
45 can be fit into 54 1 times, resulting in a remainder of 9.
Put 1 as the next digit of the answer. 
Result so far: 1.0
Deduct 45 from 54 and we're left with 9.
Fetch the next digit (2) from the dividend, attach it to 9 and continue: 92 / 45

Step 3:
45 can be fit into 92 2 times, resulting in a remainder of 2.
Record the quotient 2 as the next digit in the result. 
Result so far: 12.0
Deduct 90 from 92 and we're left with 2.
Take the next digit (5) from the dividend and append it to 2, then repeat: 25 / 45

Step 4:
25 divided by 45 is 0 with a remainder of 25.
Use 0 as the next digit of our solution. 
Result so far: 120.0
If we take 0 away from 25, we end up with 25.
Bring next digit (4) of the dividend behind the 25 and repeat the process: 254 / 45

Let's proceed to step 5:
The number 45 fits into 254 5 times, leaving a remainder of 29.
The number 5 becomes the next digit in our result. 
Result so far: 1205.0
The remainder is 29 after subtracting 225 from 254.
Include the next digit (3) from the dividend after 29, then repeat: 293 / 45

Step 6:
If we divide 293 by 45, we get 6 and a remainder of 23.
The next digit of our result is 6. 
Result so far: 12056.0
Subtract 270 from 293 to get 23.
Since there are no more digits in the dividend, we add a zero to the remainder making it 230, and continue the process.

Going ahead to step 7:
If we divide 230 by 45, we get 5 and a remainder of 5.
Record the quotient 5 as the next digit in the result. 
Result so far: 12056.5
The remainder is 5 after subtracting 225 from 230.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Let's proceed to step 8:
If we divide 50 by 45, we get 1 and a remainder of 5.
Write down 1 as next digit of the result. 
Result so far: 12056.51
If we subtract 45 from 50, we get 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

On to step 9:
50 divided by 45 is 1 with a remainder of 5.
The number 1 becomes the next digit in our result. 
Result so far: 12056.511
Subtract 45 from 50 to get 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Our division results in 12056.511 with a remaining 0.0005.