We're dividing 640474 by 25 
We're looking to find how many times 25 goes into 640474.

Let's proceed to step 1:
When dividing 6 by 25, we get 0 with a remainder of 6.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 6, we get 6.
Take the next digit (4) from the dividend and append it to 6, then repeat: 64 / 25

Let's proceed to step 2:
When dividing 64 by 25, we get 2 with a remainder of 14.
The number 2 becomes the next digit in our result. 
Result so far: 2.0
The remainder is 14 after subtracting 50 from 64.
Bring next digit (0) of the dividend behind the 14 and repeat the process: 140 / 25

Going ahead to step 3:
When dividing 140 by 25, we get 5 with a remainder of 15.
Use 5 as the next digit of our solution. 
Result so far: 25.0
The remainder is 15 after subtracting 125 from 140.
Fetch the next digit (4) from the dividend, attach it to 15 and continue: 154 / 25

Step 4:
The number 25 fits into 154 6 times, leaving a remainder of 4.
The next digit of our result is 6. 
Result so far: 256.0
Subtracting 150 from 154 leaves us with 4.
Fetch the next digit (7) from the dividend, attach it to 4 and continue: 47 / 25

Advancing to step 5:
25 can be fit into 47 1 times, resulting in a remainder of 22.
Put 1 as the next digit of the answer. 
Result so far: 2561.0
Subtract 25 from 47 to get 22.
Grab the next digit (4) from the dividend, add it to 22, then carry on: 224 / 25

Going ahead to step 6:
The number 25 fits into 224 8 times, leaving a remainder of 24.
Record the quotient 8 as the next digit in the result. 
Result so far: 25618.0
If we take 200 away from 224, we end up with 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Step 7:
If we divide 240 by 25, we get 9 and a remainder of 15.
Use 9 as the next digit of our solution. 
Result so far: 25618.9
Subtracting 225 from 240 leaves us 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 8:
150 divided by 25 is 6 with a remainder of 0.
Write down 6 as next digit of the result. 
Result so far: 25618.96
If we take 150 away from 150, 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.

Step 9:
If we divide 0 by 25, we get 0 and a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 25618.96
The remainder is 0 after subtracting 0 from 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 10:
25 goes into 0 0 times with a remainder of 0.
The next digit of our result is 0. 
Result so far: 25618.96
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.

Our division results in 25618.96 with a remaining 0.0.