We look at the division of 16681553 by 664 
We're looking to find how many times 664 goes into 16681553.

On to step 1:
1 divided by 664 is 0 with a remainder of 1.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 1, we end up with 1.
Bring next digit (6) of the dividend behind the 1 and repeat the process: 16 / 664

Advancing to step 2:
If we divide 16 by 664, we get 0 and a remainder of 16.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 16 leaves us with 16.
Bring next digit (6) of the dividend behind the 16 and repeat the process: 166 / 664

Moving on to step 3:
If we divide 166 by 664, we get 0 and a remainder of 166.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 166 leaves us with 166.
Append the next digit (8) from the dividend to 166 and continue with: 1668 / 664

On to step 4:
664 goes into 1668 2 times with a remainder of 340.
The next digit of our result is 2. 
Result so far: 2.0
Deduct 1328 from 1668 and we're left with 340.
Fetch the next digit (1) from the dividend, attach it to 340 and continue: 3401 / 664

Let's proceed to step 5:
3401 divided by 664 is 5 with a remainder of 81.
The next digit of our result is 5. 
Result so far: 25.0
The remainder is 81 after subtracting 3320 from 3401.
Bring next digit (5) of the dividend behind the 81 and repeat the process: 815 / 664

Let's proceed to step 6:
664 can be fit into 815 1 times, resulting in a remainder of 151.
Write down 1 as next digit of the result. 
Result so far: 251.0
Deduct 664 from 815 and we're left with 151.
Append the next digit (5) from the dividend to 151 and continue with: 1515 / 664

Going ahead to step 7:
The number 664 fits into 1515 2 times, leaving a remainder of 187.
Write down 2 as next digit of the result. 
Result so far: 2512.0
Subtracting 1328 from 1515 leaves us with 187.
Append the next digit (3) from the dividend to 187 and continue with: 1873 / 664

On to step 8:
If we divide 1873 by 664, we get 2 and a remainder of 545.
Use 2 as the next digit of our solution. 
Result so far: 25122.0
Deduct 1328 from 1873 and we're left with 545.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5450, and continue the process.

Moving on to step 9:
The number 664 fits into 5450 8 times, leaving a remainder of 138.
Record the quotient 8 as the next digit in the result. 
Result so far: 25122.8
The remainder is 138 after subtracting 5312 from 5450.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1380, and continue the process.

Moving on to step 10:
The number 664 fits into 1380 2 times, leaving a remainder of 52.
Write down 2 as next digit of the result. 
Result so far: 25122.82
Subtracting 1328 from 1380 leaves us with 52.
Since there are no more digits in the dividend, we add a zero to the remainder making it 520, and continue the process.

Let's proceed to step 11:
664 can be fit into 520 0 times, resulting in a remainder of 520.
Use 0 as the next digit of our solution. 
Result so far: 25122.82
Subtract 0 from 520 to get 520.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5200, and continue the process.

Let's proceed to step 12:
5200 divided by 664 is 7 with a remainder of 552.
Use 7 as the next digit of our solution. 
Result so far: 25122.8207
The remainder is 552 after subtracting 4648 from 5200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5520, and continue the process.

Moving on to step 13:
The number 664 fits into 5520 8 times, leaving a remainder of 208.
The number 8 becomes the next digit in our result. 
Result so far: 25122.82078
Subtracting 5312 from 5520 leaves us with 208.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2080, and continue the process.

Advancing to step 14:
If we divide 2080 by 664, we get 3 and a remainder of 88.
Put 3 as the next digit of the answer. 
Result so far: 25122.820783
The remainder is 88 after subtracting 1992 from 2080.
Since there are no more digits in the dividend, we add a zero to the remainder making it 880, and continue the process.

Advancing to step 15:
If we divide 880 by 664, we get 1 and a remainder of 216.
The number 1 becomes the next digit in our result. 
Result so far: 25122.8207831
If we take 664 away from 880, we end up with 216.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2160, and continue the process.

Moving on to step 16:
If we divide 2160 by 664, we get 3 and a remainder of 168.
Write down 3 as next digit of the result. 
Result so far: 25122.82078313
Subtracting 1992 from 2160 leaves us with 168.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1680, and continue the process.

The quotient of the division is 25122.82078313, and the remainder is 1.68e-07.