40925009 ÷ 25 
Our goal is to divide 40925009 by 25.

Moving on to step 1:
The number 25 fits into 4 0 times, leaving a remainder of 4.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 4 and we're left with 4.
Grab the next digit (0) from the dividend, add it to 4, then carry on: 40 / 25

Moving on to step 2:
25 goes into 40 1 times with a remainder of 15.
Put 1 as the next digit of the answer. 
Result so far: 1.0
Subtract 25 from 40 to get 15.
Include the next digit (9) from the dividend after 15, then repeat: 159 / 25

On to step 3:
If we divide 159 by 25, we get 6 and a remainder of 9.
Put 6 as the next digit of the answer. 
Result so far: 16.0
If we take 150 away from 159, we end up with 9.
Grab the next digit (2) from the dividend, add it to 9, then carry on: 92 / 25

Advancing to step 4:
The number 25 fits into 92 3 times, leaving a remainder of 17.
The next digit of our result is 3. 
Result so far: 163.0
Subtracting 75 from 92 leaves us with 17.
Bring next digit (5) of the dividend behind the 17 and repeat the process: 175 / 25

Moving on to step 5:
The number 25 fits into 175 7 times, leaving a remainder of 0.
Put 7 as the next digit of the answer. 
Result so far: 1637.0
If we take 175 away from 175, we end up with 0.
Grab the next digit (0) from the dividend, add it to 0, then carry on: 0 / 25

Step 6:
25 goes into 0 0 times with a remainder of 0.
The next digit of our result is 0. 
Result so far: 16370.0
Deduct 0 from 0 and we're left with 0.
Append the next digit (0) from the dividend to 0 and continue with: 0 / 25

On to step 7:
25 goes into 0 0 times with a remainder of 0.
The next digit of our result is 0. 
Result so far: 163700.0
If we take 0 away from 0, we end up with 0.
Grab the next digit (9) from the dividend, add it to 0, then carry on: 9 / 25

Let's proceed to step 8:
If we divide 9 by 25, we get 0 and a remainder of 9.
The next digit of our result is 0. 
Result so far: 1637000.0
The remainder is 9 after subtracting 0 from 9.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

Step 9:
25 can be fit into 90 3 times, resulting in a remainder of 15.
Record the quotient 3 as the next digit in the result. 
Result so far: 1637000.3
If we take 75 away from 90, we end up with 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

Let's proceed to step 10:
25 can be fit into 150 6 times, resulting in a remainder of 0.
Write down 6 as next digit of the result. 
Result so far: 1637000.36
Subtract 150 from 150 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.

Moving on to step 11:
0 divided by 25 is 0 with a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 1637000.36
Subtracting 0 from 0 leaves us 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 12:
If we divide 0 by 25, we get 0 and a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 1637000.36
Deduct 0 from 0 and we're left 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.

Our division results in 1637000.36 with a remaining 0.0.