Let's divide 339187 by 15
Let's see how many times 15 fits into 339187.

Moving on to step 1:
When dividing 3 by 15, we get 0 with a remainder of 3.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 3, we get 3.
Include the next digit (3) from the dividend after 3, then repeat: 33 / 15

On to step 2:
15 can be fit into 33 2 times, resulting in a remainder of 3.
The number 2 becomes the next digit in our result. 
Result so far: 2.0
Subtract 30 from 33 to get 3.
Fetch the next digit (9) from the dividend, attach it to 3 and continue: 39 / 15

Going ahead to step 3:
15 goes into 39 2 times with a remainder of 9.
Use 2 as the next digit of our solution. 
Result so far: 22.0
If we subtract 30 from 39, we get 9.
Bring next digit (1) of the dividend behind the 9 and repeat the process: 91 / 15

Going ahead to step 4:
If we divide 91 by 15, we get 6 and a remainder of 1.
Put 6 as the next digit of the answer. 
Result so far: 226.0
The remainder is 1 after subtracting 90 from 91.
Append the next digit (8) from the dividend to 1 and continue with: 18 / 15

Advancing to step 5:
The number 15 fits into 18 1 times, leaving a remainder of 3.
The number 1 becomes the next digit in our result. 
Result so far: 2261.0
If we take 15 away from 18, we end up with 3.
Include the next digit (7) from the dividend after 3, then repeat: 37 / 15

On to step 6:
15 can be fit into 37 2 times, resulting in a remainder of 7.
Use 2 as the next digit of our solution. 
Result so far: 22612.0
Subtract 30 from 37 to get 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

Moving on to step 7:
70 divided by 15 is 4 with a remainder of 10.
Use 4 as the next digit of our solution. 
Result so far: 22612.4
Subtracting 60 from 70 leaves us 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 8:
If we divide 100 by 15, we get 6 and a remainder of 10.
Put 6 as the next digit of the answer. 
Result so far: 22612.46
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.

Advancing to step 9:
100 divided by 15 is 6 with a remainder of 10.
Record the quotient 6 as the next digit in the result. 
Result so far: 22612.466
Subtracting 90 from 100 leaves us 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 quotient of the division is 22612.466, and the remainder is 0.001.