398887 divided by 15 
We want to figure out the number of times 398887 can be divided by 15.

Going ahead to step 1:
3 divided by 15 is 0 with a remainder of 3.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 3 after subtracting 0 from 3.
Take the next digit (9) from the dividend and append it to 3, then repeat: 39 / 15

Let's proceed to step 2:
15 goes into 39 2 times with a remainder of 9.
The number 2 becomes the next digit in our result. 
Result so far: 2.0
The remainder is 9 after subtracting 30 from 39.
Bring next digit (8) of the dividend behind the 9 and repeat the process: 98 / 15

Moving on to step 3:
If we divide 98 by 15, we get 6 and a remainder of 8.
The next digit of our result is 6. 
Result so far: 26.0
Subtracting 90 from 98 leaves us with 8.
Grab the next digit (8) from the dividend, add it to 8, then carry on: 88 / 15

Let's proceed to step 4:
If we divide 88 by 15, we get 5 and a remainder of 13.
Use 5 as the next digit of our solution. 
Result so far: 265.0
If we subtract 75 from 88, we get 13.
Grab the next digit (8) from the dividend, add it to 13, then carry on: 138 / 15

Moving on to step 5:
When dividing 138 by 15, we get 9 with a remainder of 3.
Write down 9 as next digit of the result. 
Result so far: 2659.0
Deduct 135 from 138 and we're left with 3.
Fetch the next digit (7) from the dividend, attach it to 3 and continue: 37 / 15

Going ahead to step 6:
15 can be fit into 37 2 times, resulting in a remainder of 7.
Record the quotient 2 as the next digit in the result. 
Result so far: 26592.0
Deduct 30 from 37 and we're left with 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

On to step 7:
When dividing 70 by 15, we get 4 with a remainder of 10.
Use 4 as the next digit of our solution. 
Result so far: 26592.4
If we take 60 away from 70, 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 8:
The number 15 fits into 100 6 times, leaving a remainder of 10.
Write down 6 as next digit of the result. 
Result so far: 26592.46
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.

Let's proceed to step 9:
100 divided by 15 is 6 with a remainder of 10.
The next digit of our result is 6. 
Result so far: 26592.466
The remainder is 10 after subtracting 90 from 100.
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 26592.466 with a remaining 0.001.