We look at the division of 24520394 by 639 
We want to figure out the number of times 24520394 can be divided by 639.

Let's proceed to step 1:
The number 639 fits into 2 0 times, leaving a remainder of 2.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 2 leaves us with 2.
Append the next digit (4) from the dividend to 2 and continue with: 24 / 639

Moving on to step 2:
639 goes into 24 0 times with a remainder of 24.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 24 and we're left with 24.
Append the next digit (5) from the dividend to 24 and continue with: 245 / 639

Let's proceed to step 3:
The number 639 fits into 245 0 times, leaving a remainder of 245.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 245, we end up with 245.
Bring next digit (2) of the dividend behind the 245 and repeat the process: 2452 / 639

Going ahead to step 4:
When dividing 2452 by 639, we get 3 with a remainder of 535.
The next digit of our result is 3. 
Result so far: 3.0
Deduct 1917 from 2452 and we're left with 535.
Grab the next digit (0) from the dividend, add it to 535, then carry on: 5350 / 639

Advancing to step 5:
5350 divided by 639 is 8 with a remainder of 238.
Use 8 as the next digit of our solution. 
Result so far: 38.0
If we take 5112 away from 5350, we end up with 238.
Append the next digit (3) from the dividend to 238 and continue with: 2383 / 639

Going ahead to step 6:
639 can be fit into 2383 3 times, resulting in a remainder of 466.
Use 3 as the next digit of our solution. 
Result so far: 383.0
The remainder is 466 after subtracting 1917 from 2383.
Append the next digit (9) from the dividend to 466 and continue with: 4669 / 639

Let's proceed to step 7:
639 can be fit into 4669 7 times, resulting in a remainder of 196.
Record the quotient 7 as the next digit in the result. 
Result so far: 3837.0
Deduct 4473 from 4669 and we're left with 196.
Include the next digit (4) from the dividend after 196, then repeat: 1964 / 639

Let's proceed to step 8:
639 goes into 1964 3 times with a remainder of 47.
The next digit of our result is 3. 
Result so far: 38373.0
Subtract 1917 from 1964 to get 47.
Since there are no more digits in the dividend, we add a zero to the remainder making it 470, and continue the process.

On to step 9:
470 divided by 639 is 0 with a remainder of 470.
Write down 0 as next digit of the result. 
Result so far: 38373.0
Subtracting 0 from 470 leaves us with 470.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4700, and continue the process.

Step 10:
639 goes into 4700 7 times with a remainder of 227.
Record the quotient 7 as the next digit in the result. 
Result so far: 38373.07
If we subtract 4473 from 4700, we get 227.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2270, and continue the process.

Moving on to step 11:
639 can be fit into 2270 3 times, resulting in a remainder of 353.
Put 3 as the next digit of the answer. 
Result so far: 38373.073
Deduct 1917 from 2270 and we're left with 353.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3530, and continue the process.

Moving on to step 12:
3530 divided by 639 is 5 with a remainder of 335.
Use 5 as the next digit of our solution. 
Result so far: 38373.0735
If we subtract 3195 from 3530, we get 335.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3350, and continue the process.

Let's proceed to step 13:
639 can be fit into 3350 5 times, resulting in a remainder of 155.
Write down 5 as next digit of the result. 
Result so far: 38373.07355
If we subtract 3195 from 3350, we get 155.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1550, and continue the process.

The final outcome is 38373.07355, with a leftover of 0.000155.