407766 divided by 25 
We want to figure out the number of times 407766 can be divided by 25.

On to step 1:
25 can be fit into 4 0 times, resulting in a remainder of 4.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 4, we get 4.
Include the next digit (0) from the dividend after 4, then repeat: 40 / 25

Going ahead to step 2:
If we divide 40 by 25, we get 1 and a remainder of 15.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
If we take 25 away from 40, we end up with 15.
Include the next digit (7) from the dividend after 15, then repeat: 157 / 25

Step 3:
157 divided by 25 is 6 with a remainder of 7.
Use 6 as the next digit of our solution. 
Result so far: 16.0
Subtracting 150 from 157 leaves us with 7.
Append the next digit (7) from the dividend to 7 and continue with: 77 / 25

Advancing to step 4:
77 divided by 25 is 3 with a remainder of 2.
The number 3 becomes the next digit in our result. 
Result so far: 163.0
Deduct 75 from 77 and we're left with 2.
Append the next digit (6) from the dividend to 2 and continue with: 26 / 25

On to step 5:
25 goes into 26 1 times with a remainder of 1.
Record the quotient 1 as the next digit in the result. 
Result so far: 1631.0
If we subtract 25 from 26, we get 1.
Grab the next digit (6) from the dividend, add it to 1, then carry on: 16 / 25

Advancing to step 6:
16 divided by 25 is 0 with a remainder of 16.
Use 0 as the next digit of our solution. 
Result so far: 16310.0
If we take 0 away from 16, we end up with 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Advancing to step 7:
If we divide 160 by 25, we get 6 and a remainder of 10.
Put 6 as the next digit of the answer. 
Result so far: 16310.6
Subtracting 150 from 160 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.

Step 8:
25 can be fit into 100 4 times, resulting in a remainder of 0.
The number 4 becomes the next digit in our result. 
Result so far: 16310.64
Deduct 100 from 100 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.

On to step 9:
25 goes into 0 0 times with a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 16310.64
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.

On to step 10:
25 goes into 0 0 times with a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 16310.64
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.

After the division, we end up with 16310.64 and a remainder of 0.0.