66704151 ÷ 665 
Let's see how many times 665 fits into 66704151.

Step 1:
665 can be fit into 6 0 times, resulting in a remainder of 6.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 6 and we're left with 6.
Fetch the next digit (6) from the dividend, attach it to 6 and continue: 66 / 665

On to step 2:
If we divide 66 by 665, we get 0 and a remainder of 66.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 66 after subtracting 0 from 66.
Include the next digit (7) from the dividend after 66, then repeat: 667 / 665

Moving on to step 3:
667 divided by 665 is 1 with a remainder of 2.
Put 1 as the next digit of the answer. 
Result so far: 1.0
If we take 665 away from 667, we end up with 2.
Take the next digit (0) from the dividend and append it to 2, then repeat: 20 / 665

Going ahead to step 4:
665 can be fit into 20 0 times, resulting in a remainder of 20.
Write down 0 as next digit of the result. 
Result so far: 10.0
If we subtract 0 from 20, we get 20.
Append the next digit (4) from the dividend to 20 and continue with: 204 / 665

Going ahead to step 5:
204 divided by 665 is 0 with a remainder of 204.
Put 0 as the next digit of the answer. 
Result so far: 100.0
Deduct 0 from 204 and we're left with 204.
Take the next digit (1) from the dividend and append it to 204, then repeat: 2041 / 665

On to step 6:
When dividing 2041 by 665, we get 3 with a remainder of 46.
Put 3 as the next digit of the answer. 
Result so far: 1003.0
Subtract 1995 from 2041 to get 46.
Grab the next digit (5) from the dividend, add it to 46, then carry on: 465 / 665

Moving on to step 7:
665 can be fit into 465 0 times, resulting in a remainder of 465.
Record the quotient 0 as the next digit in the result. 
Result so far: 10030.0
The remainder is 465 after subtracting 0 from 465.
Append the next digit (1) from the dividend to 465 and continue with: 4651 / 665

On to step 8:
When dividing 4651 by 665, we get 6 with a remainder of 661.
Record the quotient 6 as the next digit in the result. 
Result so far: 100306.0
Deduct 3990 from 4651 and we're left with 661.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6610, and continue the process.

On to step 9:
665 goes into 6610 9 times with a remainder of 625.
The next digit of our result is 9. 
Result so far: 100306.9
If we subtract 5985 from 6610, we get 625.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6250, and continue the process.

Going ahead to step 10:
665 goes into 6250 9 times with a remainder of 265.
Use 9 as the next digit of our solution. 
Result so far: 100306.99
Subtract 5985 from 6250 to get 265.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2650, and continue the process.

The final result is 100306.99 with a remainder of 0.265.