Let's divide 251429 by 15
We want to divide 251429 by 15.

Step 1:
The number 15 fits into 2 0 times, leaving a remainder of 2.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 2 after subtracting 0 from 2.
Bring next digit (5) of the dividend behind the 2 and repeat the process: 25 / 15

Going ahead to step 2:
When dividing 25 by 15, we get 1 with a remainder of 10.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
The remainder is 10 after subtracting 15 from 25.
Fetch the next digit (1) from the dividend, attach it to 10 and continue: 101 / 15

Let's proceed to step 3:
15 goes into 101 6 times with a remainder of 11.
Record the quotient 6 as the next digit in the result. 
Result so far: 16.0
Subtract 90 from 101 to get 11.
Include the next digit (4) from the dividend after 11, then repeat: 114 / 15

Step 4:
If we divide 114 by 15, we get 7 and a remainder of 9.
Write down 7 as next digit of the result. 
Result so far: 167.0
The remainder is 9 after subtracting 105 from 114.
Include the next digit (2) from the dividend after 9, then repeat: 92 / 15

Going ahead to step 5:
The number 15 fits into 92 6 times, leaving a remainder of 2.
The next digit of our result is 6. 
Result so far: 1676.0
If we take 90 away from 92, we end up with 2.
Bring next digit (9) of the dividend behind the 2 and repeat the process: 29 / 15

Moving on to step 6:
29 divided by 15 is 1 with a remainder of 14.
Record the quotient 1 as the next digit in the result. 
Result so far: 16761.0
Subtract 15 from 29 to get 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:
15 goes into 140 9 times with a remainder of 5.
Use 9 as the next digit of our solution. 
Result so far: 16761.9
If we take 135 away from 140, 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.

Advancing to step 8:
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: 16761.93
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: 16761.933
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.

The final outcome is 16761.933, with a leftover of 0.0005.