We're dividing 39563810 by 25 
We want to figure out the number of times 39563810 can be divided by 25.

Going ahead to step 1:
3 divided by 25 is 0 with a remainder of 3.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 3 leaves us with 3.
Fetch the next digit (9) from the dividend, attach it to 3 and continue: 39 / 25

Let's proceed to step 2:
25 goes into 39 1 times with a remainder of 14.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
Deduct 25 from 39 and we're left with 14.
Append the next digit (5) from the dividend to 14 and continue with: 145 / 25

Advancing to step 3:
25 can be fit into 145 5 times, resulting in a remainder of 20.
The number 5 becomes the next digit in our result. 
Result so far: 15.0
Subtracting 125 from 145 leaves us with 20.
Include the next digit (6) from the dividend after 20, then repeat: 206 / 25

Moving on to step 4:
When dividing 206 by 25, we get 8 with a remainder of 6.
Use 8 as the next digit of our solution. 
Result so far: 158.0
Subtracting 200 from 206 leaves us with 6.
Bring next digit (3) of the dividend behind the 6 and repeat the process: 63 / 25

Going ahead to step 5:
25 goes into 63 2 times with a remainder of 13.
The number 2 becomes the next digit in our result. 
Result so far: 1582.0
The remainder is 13 after subtracting 50 from 63.
Bring next digit (8) of the dividend behind the 13 and repeat the process: 138 / 25

Advancing to step 6:
The number 25 fits into 138 5 times, leaving a remainder of 13.
Write down 5 as next digit of the result. 
Result so far: 15825.0
The remainder is 13 after subtracting 125 from 138.
Include the next digit (1) from the dividend after 13, then repeat: 131 / 25

Going ahead to step 7:
When dividing 131 by 25, we get 5 with a remainder of 6.
Put 5 as the next digit of the answer. 
Result so far: 158255.0
If we take 125 away from 131, we end up with 6.
Grab the next digit (0) from the dividend, add it to 6, then carry on: 60 / 25

On to step 8:
The number 25 fits into 60 2 times, leaving a remainder of 10.
Use 2 as the next digit of our solution. 
Result so far: 1582552.0
Subtracting 50 from 60 leaves us 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.

Let's proceed to step 9:
If we divide 100 by 25, we get 4 and a remainder of 0.
Use 4 as the next digit of our solution. 
Result so far: 1582552.4
If we take 100 away from 100, we end up with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Let's proceed to step 10:
25 goes into 0 0 times with a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 1582552.4
If we take 0 away from 0, we end up with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Moving on to step 11:
0 divided by 25 is 0 with a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 1582552.4
Subtract 0 from 0 to get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

The final outcome is 1582552.4, with a leftover of 0.0.