We look at the division of 236759 by 15 
We're looking to find how many times 15 goes into 236759.

Step 1:
If we divide 2 by 15, we get 0 and a remainder of 2.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 2 leaves us with 2.
Bring next digit (3) of the dividend behind the 2 and repeat the process: 23 / 15

Advancing to step 2:
23 divided by 15 is 1 with a remainder of 8.
Put 1 as the next digit of the answer. 
Result so far: 1.0
Subtracting 15 from 23 leaves us with 8.
Fetch the next digit (6) from the dividend, attach it to 8 and continue: 86 / 15

On to step 3:
15 goes into 86 5 times with a remainder of 11.
Record the quotient 5 as the next digit in the result. 
Result so far: 15.0
Subtract 75 from 86 to get 11.
Include the next digit (7) from the dividend after 11, then repeat: 117 / 15

On to step 4:
The number 15 fits into 117 7 times, leaving a remainder of 12.
Write down 7 as next digit of the result. 
Result so far: 157.0
If we take 105 away from 117, we end up with 12.
Fetch the next digit (5) from the dividend, attach it to 12 and continue: 125 / 15

Advancing to step 5:
15 goes into 125 8 times with a remainder of 5.
Put 8 as the next digit of the answer. 
Result so far: 1578.0
If we take 120 away from 125, we end up with 5.
Fetch the next digit (9) from the dividend, attach it to 5 and continue: 59 / 15

Moving on to step 6:
15 goes into 59 3 times with a remainder of 14.
The next digit of our result is 3. 
Result so far: 15783.0
If we take 45 away from 59, we end up with 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

On to step 7:
When dividing 140 by 15, we get 9 with a remainder of 5.
The next digit of our result is 9. 
Result so far: 15783.9
Deduct 135 from 140 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.

Advancing to step 8:
15 can be fit into 50 3 times, resulting in a remainder of 5.
Put 3 as the next digit of the answer. 
Result so far: 15783.93
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.

On to step 9:
15 goes into 50 3 times with a remainder of 5.
Put 3 as the next digit of the answer. 
Result so far: 15783.933
If we take 45 away from 50, we end up 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.

The final outcome is 15783.933, with a leftover of 0.0005.