We look at the division of 25016205 by 664 
Our goal is to divide 25016205 by 664.

Going ahead to step 1:
When dividing 2 by 664, we get 0 with a remainder of 2.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 2 and we're left with 2.
Bring next digit (5) of the dividend behind the 2 and repeat the process: 25 / 664

Moving on to step 2:
When dividing 25 by 664, we get 0 with a remainder of 25.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 25 leaves us with 25.
Include the next digit (0) from the dividend after 25, then repeat: 250 / 664

Going ahead to step 3:
664 goes into 250 0 times with a remainder of 250.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 250, we end up with 250.
Grab the next digit (1) from the dividend, add it to 250, then carry on: 2501 / 664

Going ahead to step 4:
664 goes into 2501 3 times with a remainder of 509.
Record the quotient 3 as the next digit in the result. 
Result so far: 3.0
Deduct 1992 from 2501 and we're left with 509.
Take the next digit (6) from the dividend and append it to 509, then repeat: 5096 / 664

Advancing to step 5:
The number 664 fits into 5096 7 times, leaving a remainder of 448.
Put 7 as the next digit of the answer. 
Result so far: 37.0
Subtract 4648 from 5096 to get 448.
Take the next digit (2) from the dividend and append it to 448, then repeat: 4482 / 664

Advancing to step 6:
664 can be fit into 4482 6 times, resulting in a remainder of 498.
Put 6 as the next digit of the answer. 
Result so far: 376.0
If we subtract 3984 from 4482, we get 498.
Bring next digit (0) of the dividend behind the 498 and repeat the process: 4980 / 664

Going ahead to step 7:
When dividing 4980 by 664, we get 7 with a remainder of 332.
Use 7 as the next digit of our solution. 
Result so far: 3767.0
Deduct 4648 from 4980 and we're left with 332.
Take the next digit (5) from the dividend and append it to 332, then repeat: 3325 / 664

Step 8:
If we divide 3325 by 664, we get 5 and a remainder of 5.
Put 5 as the next digit of the answer. 
Result so far: 37675.0
The remainder is 5 after subtracting 3320 from 3325.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

On to step 9:
If we divide 50 by 664, we get 0 and a remainder of 50.
Write down 0 as next digit of the result. 
Result so far: 37675.0
The remainder is 50 after subtracting 0 from 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Going ahead to step 10:
500 divided by 664 is 0 with a remainder of 500.
Record the quotient 0 as the next digit in the result. 
Result so far: 37675.0
Subtract 0 from 500 to get 500.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5000, and continue the process.

The final result is 37675.0 with a remainder of 0.5.