We divide 142313 by 15
Let's see how many times 15 fits into 142313.

Step 1:
1 divided by 15 is 0 with a remainder of 1.
Record the quotient 0 as the next digit in the result. 
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

Moving on to step 2:
15 goes into 14 0 times with a remainder of 14.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 14 to get 14.
Bring next digit (2) of the dividend behind the 14 and repeat the process: 142 / 15

Let's proceed to step 3:
The number 15 fits into 142 9 times, leaving a remainder of 7.
Put 9 as the next digit of the answer. 
Result so far: 9.0
The remainder is 7 after subtracting 135 from 142.
Include the next digit (3) from the dividend after 7, then repeat: 73 / 15

Let's proceed to step 4:
When dividing 73 by 15, we get 4 with a remainder of 13.
Put 4 as the next digit of the answer. 
Result so far: 94.0
If we subtract 60 from 73, we get 13.
Grab the next digit (1) from the dividend, add it to 13, then carry on: 131 / 15

Advancing to step 5:
15 goes into 131 8 times with a remainder of 11.
Put 8 as the next digit of the answer. 
Result so far: 948.0
Subtracting 120 from 131 leaves us with 11.
Fetch the next digit (3) from the dividend, attach it to 11 and continue: 113 / 15

Advancing to step 6:
15 goes into 113 7 times with a remainder of 8.
The number 7 becomes the next digit in our result. 
Result so far: 9487.0
Subtracting 105 from 113 leaves us with 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Going ahead to step 7:
15 can be fit into 80 5 times, resulting in a remainder of 5.
Record the quotient 5 as the next digit in the result. 
Result so far: 9487.5
Deduct 75 from 80 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.

Step 8:
When dividing 50 by 15, we get 3 with a remainder of 5.
Write down 3 as next digit of the result. 
Result so far: 9487.53
Subtracting 45 from 50 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.

On to step 9:
15 can be fit into 50 3 times, resulting in a remainder of 5.
The number 3 becomes the next digit in our result. 
Result so far: 9487.533
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 9487.533, and the remainder is 0.0005.