25016985 ÷ 664 
We want to divide 25016985 by 664.

Advancing to step 1:
664 goes into 2 0 times with a remainder of 2.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 2, we get 2.
Grab the next digit (5) from the dividend, add it to 2, then carry on: 25 / 664

On to step 2:
664 can be fit into 25 0 times, resulting in a remainder of 25.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 25 and we're left with 25.
Bring next digit (0) of the dividend behind the 25 and repeat the process: 250 / 664

Advancing to step 3:
If we divide 250 by 664, we get 0 and a remainder of 250.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 250 and we're left with 250.
Grab the next digit (1) from the dividend, add it to 250, then carry on: 2501 / 664

On to step 4:
2501 divided by 664 is 3 with a remainder of 509.
Put 3 as the next digit of the answer. 
Result so far: 3.0
If we subtract 1992 from 2501, we get 509.
Bring next digit (6) of the dividend behind the 509 and repeat the process: 5096 / 664

Going ahead to step 5:
If we divide 5096 by 664, we get 7 and a remainder of 448.
Put 7 as the next digit of the answer. 
Result so far: 37.0
The remainder is 448 after subtracting 4648 from 5096.
Append the next digit (9) from the dividend to 448 and continue with: 4489 / 664

Advancing to step 6:
The number 664 fits into 4489 6 times, leaving a remainder of 505.
Record the quotient 6 as the next digit in the result. 
Result so far: 376.0
The remainder is 505 after subtracting 3984 from 4489.
Include the next digit (8) from the dividend after 505, then repeat: 5058 / 664

On to step 7:
When dividing 5058 by 664, we get 7 with a remainder of 410.
The number 7 becomes the next digit in our result. 
Result so far: 3767.0
The remainder is 410 after subtracting 4648 from 5058.
Fetch the next digit (5) from the dividend, attach it to 410 and continue: 4105 / 664

Moving on to step 8:
664 can be fit into 4105 6 times, resulting in a remainder of 121.
Record the quotient 6 as the next digit in the result. 
Result so far: 37676.0
Deduct 3984 from 4105 and we're left with 121.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1210, and continue the process.

Step 9:
If we divide 1210 by 664, we get 1 and a remainder of 546.
Put 1 as the next digit of the answer. 
Result so far: 37676.1
Subtract 664 from 1210 to get 546.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5460, and continue the process.

On to step 10:
664 goes into 5460 8 times with a remainder of 148.
The next digit of our result is 8. 
Result so far: 37676.18
The remainder is 148 after subtracting 5312 from 5460.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1480, and continue the process.

Advancing to step 11:
The number 664 fits into 1480 2 times, leaving a remainder of 152.
The next digit of our result is 2. 
Result so far: 37676.182
Subtract 1328 from 1480 to get 152.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1520, and continue the process.

Moving on to step 12:
The number 664 fits into 1520 2 times, leaving a remainder of 192.
Record the quotient 2 as the next digit in the result. 
Result so far: 37676.1822
If we take 1328 away from 1520, we end up with 192.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1920, and continue the process.

The final result is 37676.1822 with a remainder of 0.00192.