We look at the division of 143408 by 15 
We want to divide 143408 by 15.

Going ahead to step 1:
1 divided by 15 is 0 with a remainder of 1.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 1 and we're left with 1.
Bring next digit (4) of the dividend behind the 1 and repeat the process: 14 / 15

Step 2:
If we divide 14 by 15, we get 0 and a remainder of 14.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 14, we end up with 14.
Grab the next digit (3) from the dividend, add it to 14, then carry on: 143 / 15

Let's proceed to step 3:
If we divide 143 by 15, we get 9 and a remainder of 8.
Write down 9 as next digit of the result. 
Result so far: 9.0
Deduct 135 from 143 and we're left with 8.
Fetch the next digit (4) from the dividend, attach it to 8 and continue: 84 / 15

Advancing to step 4:
If we divide 84 by 15, we get 5 and a remainder of 9.
The next digit of our result is 5. 
Result so far: 95.0
Subtract 75 from 84 to get 9.
Fetch the next digit (0) from the dividend, attach it to 9 and continue: 90 / 15

Going ahead to step 5:
When dividing 90 by 15, we get 6 with a remainder of 0.
The number 6 becomes the next digit in our result. 
Result so far: 956.0
If we take 90 away from 90, we end up with 0.
Include the next digit (8) from the dividend after 0, then repeat: 8 / 15

Step 6:
15 goes into 8 0 times with a remainder of 8.
The next digit of our result is 0. 
Result so far: 9560.0
The remainder is 8 after subtracting 0 from 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Step 7:
When dividing 80 by 15, we get 5 with a remainder of 5.
Put 5 as the next digit of the answer. 
Result so far: 9560.5
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.

Going ahead to step 8:
15 goes into 50 3 times with a remainder of 5.
The next digit of our result is 3. 
Result so far: 9560.53
Subtract 45 from 50 to 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.

Step 9:
When dividing 50 by 15, we get 3 with a remainder of 5.
Use 3 as the next digit of our solution. 
Result so far: 9560.533
The remainder is 5 after subtracting 45 from 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

The quotient of the division is 9560.533, and the remainder is 0.0005.