We're dividing 644050 by 24 
We want to figure out the number of times 644050 can be divided by 24.

On to step 1:
24 goes into 6 0 times with a remainder of 6.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 6 leaves us with 6.
Fetch the next digit (4) from the dividend, attach it to 6 and continue: 64 / 24

On to step 2:
When dividing 64 by 24, we get 2 with a remainder of 16.
The number 2 becomes the next digit in our result. 
Result so far: 2.0
Subtracting 48 from 64 leaves us with 16.
Take the next digit (4) from the dividend and append it to 16, then repeat: 164 / 24

Advancing to step 3:
When dividing 164 by 24, we get 6 with a remainder of 20.
Write down 6 as next digit of the result. 
Result so far: 26.0
If we subtract 144 from 164, we get 20.
Take the next digit (0) from the dividend and append it to 20, then repeat: 200 / 24

On to step 4:
The number 24 fits into 200 8 times, leaving a remainder of 8.
The number 8 becomes the next digit in our result. 
Result so far: 268.0
If we subtract 192 from 200, we get 8.
Include the next digit (5) from the dividend after 8, then repeat: 85 / 24

Going ahead to step 5:
85 divided by 24 is 3 with a remainder of 13.
Use 3 as the next digit of our solution. 
Result so far: 2683.0
The remainder is 13 after subtracting 72 from 85.
Bring next digit (0) of the dividend behind the 13 and repeat the process: 130 / 24

Going ahead to step 6:
When dividing 130 by 24, we get 5 with a remainder of 10.
Use 5 as the next digit of our solution. 
Result so far: 26835.0
Deduct 120 from 130 and we're left with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Advancing to step 7:
The number 24 fits into 100 4 times, leaving a remainder of 4.
The next digit of our result is 4. 
Result so far: 26835.4
If we subtract 96 from 100, we get 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Step 8:
24 goes into 40 1 times with a remainder of 16.
Use 1 as the next digit of our solution. 
Result so far: 26835.41
The remainder is 16 after subtracting 24 from 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Moving on to step 9:
160 divided by 24 is 6 with a remainder of 16.
Write down 6 as next digit of the result. 
Result so far: 26835.416
Subtracting 144 from 160 leaves us with 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Step 10:
The number 24 fits into 160 6 times, leaving a remainder of 16.
Use 6 as the next digit of our solution. 
Result so far: 26835.4166
Deduct 144 from 160 and we're left with 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

After the division, we end up with 26835.4166 and a remainder of 0.00016.