25654423 divided by 660 
Let's see how many times 660 fits into 25654423.

Moving on to step 1:
660 can be fit into 2 0 times, resulting in a remainder of 2.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 2 after subtracting 0 from 2.
Take the next digit (5) from the dividend and append it to 2, then repeat: 25 / 660

Step 2:
660 can be fit into 25 0 times, resulting in a remainder of 25.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 25, we get 25.
Fetch the next digit (6) from the dividend, attach it to 25 and continue: 256 / 660

Step 3:
If we divide 256 by 660, we get 0 and a remainder of 256.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 256 leaves us with 256.
Append the next digit (5) from the dividend to 256 and continue with: 2565 / 660

On to step 4:
660 can be fit into 2565 3 times, resulting in a remainder of 585.
Write down 3 as next digit of the result. 
Result so far: 3.0
Deduct 1980 from 2565 and we're left with 585.
Bring next digit (4) of the dividend behind the 585 and repeat the process: 5854 / 660

Step 5:
660 can be fit into 5854 8 times, resulting in a remainder of 574.
The number 8 becomes the next digit in our result. 
Result so far: 38.0
The remainder is 574 after subtracting 5280 from 5854.
Include the next digit (4) from the dividend after 574, then repeat: 5744 / 660

Step 6:
When dividing 5744 by 660, we get 8 with a remainder of 464.
Put 8 as the next digit of the answer. 
Result so far: 388.0
If we subtract 5280 from 5744, we get 464.
Bring next digit (2) of the dividend behind the 464 and repeat the process: 4642 / 660

Moving on to step 7:
660 can be fit into 4642 7 times, resulting in a remainder of 22.
Record the quotient 7 as the next digit in the result. 
Result so far: 3887.0
If we subtract 4620 from 4642, we get 22.
Grab the next digit (3) from the dividend, add it to 22, then carry on: 223 / 660

Going ahead to step 8:
If we divide 223 by 660, we get 0 and a remainder of 223.
Record the quotient 0 as the next digit in the result. 
Result so far: 38870.0
Subtracting 0 from 223 leaves us with 223.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2230, and continue the process.

Moving on to step 9:
If we divide 2230 by 660, we get 3 and a remainder of 250.
Put 3 as the next digit of the answer. 
Result so far: 38870.3
Subtracting 1980 from 2230 leaves us with 250.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2500, and continue the process.

Advancing to step 10:
660 goes into 2500 3 times with a remainder of 520.
Use 3 as the next digit of our solution. 
Result so far: 38870.33
If we take 1980 away from 2500, we end up with 520.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5200, and continue the process.

Our division results in 38870.33 with a remaining 0.52.