We're dividing 398828 by 15 
Let's see how many times 15 fits into 398828.

Let's proceed to step 1:
The number 15 fits into 3 0 times, leaving a remainder of 3.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 3 and we're left with 3.
Append the next digit (9) from the dividend to 3 and continue with: 39 / 15

Going ahead to step 2:
If we divide 39 by 15, we get 2 and a remainder of 9.
Record the quotient 2 as the next digit in the result. 
Result so far: 2.0
The remainder is 9 after subtracting 30 from 39.
Take the next digit (8) from the dividend and append it to 9, then repeat: 98 / 15

Advancing to step 3:
98 divided by 15 is 6 with a remainder of 8.
The next digit of our result is 6. 
Result so far: 26.0
Subtract 90 from 98 to get 8.
Grab the next digit (8) from the dividend, add it to 8, then carry on: 88 / 15

Step 4:
The number 15 fits into 88 5 times, leaving a remainder of 13.
Put 5 as the next digit of the answer. 
Result so far: 265.0
If we subtract 75 from 88, we get 13.
Append the next digit (2) from the dividend to 13 and continue with: 132 / 15

Advancing to step 5:
The number 15 fits into 132 8 times, leaving a remainder of 12.
Put 8 as the next digit of the answer. 
Result so far: 2658.0
Deduct 120 from 132 and we're left with 12.
Grab the next digit (8) from the dividend, add it to 12, then carry on: 128 / 15

Going ahead to step 6:
15 can be fit into 128 8 times, resulting in a remainder of 8.
The number 8 becomes the next digit in our result. 
Result so far: 26588.0
The remainder is 8 after subtracting 120 from 128.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Moving on to step 7:
15 goes into 80 5 times with a remainder of 5.
Put 5 as the next digit of the answer. 
Result so far: 26588.5
Subtracting 75 from 80 leaves us with 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Step 8:
If we divide 50 by 15, we get 3 and a remainder of 5.
Use 3 as the next digit of our solution. 
Result so far: 26588.53
Deduct 45 from 50 and we're left with 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Moving on to step 9:
50 divided by 15 is 3 with a remainder of 5.
The number 3 becomes the next digit in our result. 
Result so far: 26588.533
If we subtract 45 from 50, we get 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

After the division, we end up with 26588.533 and a remainder of 0.0005.