724558 ÷ 45 
We want to figure out the number of times 724558 can be divided by 45.

Advancing 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
Deduct 0 from 7 and we're left with 7.
Bring next digit (2) of the dividend behind the 7 and repeat the process: 72 / 45

Advancing to step 2:
45 can be fit into 72 1 times, resulting in a remainder of 27.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
If we subtract 45 from 72, we get 27.
Fetch the next digit (4) from the dividend, attach it to 27 and continue: 274 / 45

Advancing to step 3:
The number 45 fits into 274 6 times, leaving a remainder of 4.
Put 6 as the next digit of the answer. 
Result so far: 16.0
If we take 270 away from 274, we end up with 4.
Fetch the next digit (5) from the dividend, attach it to 4 and continue: 45 / 45

Step 4:
45 can be fit into 45 1 times, resulting in a remainder of 0.
The number 1 becomes the next digit in our result. 
Result so far: 161.0
Subtracting 45 from 45 leaves us with 0.
Grab the next digit (5) from the dividend, add it to 0, then carry on: 5 / 45

Moving on to step 5:
45 goes into 5 0 times with a remainder of 5.
Put 0 as the next digit of the answer. 
Result so far: 1610.0
Subtract 0 from 5 to get 5.
Take the next digit (8) from the dividend and append it to 5, then repeat: 58 / 45

On to step 6:
45 can be fit into 58 1 times, resulting in a remainder of 13.
Write down 1 as next digit of the result. 
Result so far: 16101.0
Deduct 45 from 58 and we're left with 13.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

Advancing to step 7:
If we divide 130 by 45, we get 2 and a remainder of 40.
Put 2 as the next digit of the answer. 
Result so far: 16101.2
Deduct 90 from 130 and we're left with 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Let's proceed to step 8:
If we divide 400 by 45, we get 8 and a remainder of 40.
Put 8 as the next digit of the answer. 
Result so far: 16101.28
Deduct 360 from 400 and we're left with 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Step 9:
400 divided by 45 is 8 with a remainder of 40.
Use 8 as the next digit of our solution. 
Result so far: 16101.288
If we subtract 360 from 400, we get 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

After the division, we end up with 16101.288 and a remainder of 0.004.