668320 divided by 15 
We want to divide 668320 by 15.

Advancing to step 1:
15 goes into 6 0 times with a remainder of 6.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 6, we get 6.
Include the next digit (6) from the dividend after 6, then repeat: 66 / 15

On to step 2:
The number 15 fits into 66 4 times, leaving a remainder of 6.
The next digit of our result is 4. 
Result so far: 4.0
If we take 60 away from 66, we end up with 6.
Append the next digit (8) from the dividend to 6 and continue with: 68 / 15

Advancing to step 3:
When dividing 68 by 15, we get 4 with a remainder of 8.
Use 4 as the next digit of our solution. 
Result so far: 44.0
If we take 60 away from 68, we end up with 8.
Grab the next digit (3) from the dividend, add it to 8, then carry on: 83 / 15

Moving on to step 4:
The number 15 fits into 83 5 times, leaving a remainder of 8.
The number 5 becomes the next digit in our result. 
Result so far: 445.0
If we take 75 away from 83, we end up with 8.
Grab the next digit (2) from the dividend, add it to 8, then carry on: 82 / 15

Let's proceed to step 5:
15 goes into 82 5 times with a remainder of 7.
Use 5 as the next digit of our solution. 
Result so far: 4455.0
Subtract 75 from 82 to get 7.
Take the next digit (0) from the dividend and append it to 7, then repeat: 70 / 15

On to step 6:
15 goes into 70 4 times with a remainder of 10.
Put 4 as the next digit of the answer. 
Result so far: 44554.0
The remainder is 10 after subtracting 60 from 70.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Going ahead to step 7:
100 divided by 15 is 6 with a remainder of 10.
Write down 6 as next digit of the result. 
Result so far: 44554.6
If we subtract 90 from 100, we get 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Moving on to step 8:
If we divide 100 by 15, we get 6 and a remainder of 10.
Write down 6 as next digit of the result. 
Result so far: 44554.66
Deduct 90 from 100 and we're left with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Our division results in 44554.66 with a remaining 0.01.