We divide 397783 by 15
Let's see how many times 15 fits into 397783.

Step 1:
If we divide 3 by 15, we get 0 and a remainder of 3.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 3 leaves us with 3.
Bring next digit (9) of the dividend behind the 3 and repeat the process: 39 / 15

Advancing to step 2:
39 divided by 15 is 2 with a remainder of 9.
The number 2 becomes the next digit in our result. 
Result so far: 2.0
Subtract 30 from 39 to get 9.
Append the next digit (7) from the dividend to 9 and continue with: 97 / 15

On to step 3:
The number 15 fits into 97 6 times, leaving a remainder of 7.
The next digit of our result is 6. 
Result so far: 26.0
If we subtract 90 from 97, we get 7.
Append the next digit (7) from the dividend to 7 and continue with: 77 / 15

Let's proceed to step 4:
77 divided by 15 is 5 with a remainder of 2.
Write down 5 as next digit of the result. 
Result so far: 265.0
Subtract 75 from 77 to get 2.
Append the next digit (8) from the dividend to 2 and continue with: 28 / 15

On to step 5:
28 divided by 15 is 1 with a remainder of 13.
The next digit of our result is 1. 
Result so far: 2651.0
If we take 15 away from 28, we end up with 13.
Append the next digit (3) from the dividend to 13 and continue with: 133 / 15

Moving on to step 6:
The number 15 fits into 133 8 times, leaving a remainder of 13.
Write down 8 as next digit of the result. 
Result so far: 26518.0
Deduct 120 from 133 and we're left with 13.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

Moving on to step 7:
15 can be fit into 130 8 times, resulting in a remainder of 10.
Record the quotient 8 as the next digit in the result. 
Result so far: 26518.8
Subtract 120 from 130 to 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.

Let's proceed to step 8:
15 can be fit into 100 6 times, resulting in a remainder of 10.
Record the quotient 6 as the next digit in the result. 
Result so far: 26518.86
If we take 90 away from 100, we end up 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.

On to step 9:
The number 15 fits into 100 6 times, leaving a remainder of 10.
Use 6 as the next digit of our solution. 
Result so far: 26518.866
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.

The final result is 26518.866 with a remainder of 0.001.