646024 ÷ 25 
We want to divide 646024 by 25.

Going ahead to step 1:
When dividing 6 by 25, we get 0 with a remainder of 6.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 6 leaves us with 6.
Take the next digit (4) from the dividend and append it to 6, then repeat: 64 / 25

Going ahead to step 2:
25 goes into 64 2 times with a remainder of 14.
Write down 2 as next digit of the result. 
Result so far: 2.0
If we take 50 away from 64, we end up with 14.
Include the next digit (6) from the dividend after 14, then repeat: 146 / 25

Going ahead to step 3:
If we divide 146 by 25, we get 5 and a remainder of 21.
Record the quotient 5 as the next digit in the result. 
Result so far: 25.0
Deduct 125 from 146 and we're left with 21.
Grab the next digit (0) from the dividend, add it to 21, then carry on: 210 / 25

Step 4:
When dividing 210 by 25, we get 8 with a remainder of 10.
Record the quotient 8 as the next digit in the result. 
Result so far: 258.0
Deduct 200 from 210 and we're left with 10.
Bring next digit (2) of the dividend behind the 10 and repeat the process: 102 / 25

Advancing to step 5:
25 can be fit into 102 4 times, resulting in a remainder of 2.
Record the quotient 4 as the next digit in the result. 
Result so far: 2584.0
Subtract 100 from 102 to get 2.
Append the next digit (4) from the dividend to 2 and continue with: 24 / 25

Advancing to step 6:
The number 25 fits into 24 0 times, leaving a remainder of 24.
Put 0 as the next digit of the answer. 
Result so far: 25840.0
Subtract 0 from 24 to get 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

On to step 7:
When dividing 240 by 25, we get 9 with a remainder of 15.
Put 9 as the next digit of the answer. 
Result so far: 25840.9
If we subtract 225 from 240, we get 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

On to step 8:
150 divided by 25 is 6 with a remainder of 0.
The number 6 becomes the next digit in our result. 
Result so far: 25840.96
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.

Let's proceed to step 9:
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: 25840.96
If we subtract 0 from 0, we 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.

Let's proceed to step 10:
0 divided by 25 is 0 with a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 25840.96
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.

The final result is 25840.96 with a remainder of 0.0.