We look at the division of 351379 by 15 
Our goal is to divide 351379 by 15.

Let's proceed to step 1:
If we divide 3 by 15, we get 0 and a remainder of 3.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 3 to get 3.
Bring next digit (5) of the dividend behind the 3 and repeat the process: 35 / 15

On to step 2:
15 can be fit into 35 2 times, resulting in a remainder of 5.
The next digit of our result is 2. 
Result so far: 2.0
The remainder is 5 after subtracting 30 from 35.
Fetch the next digit (1) from the dividend, attach it to 5 and continue: 51 / 15

Let's proceed to step 3:
51 divided by 15 is 3 with a remainder of 6.
Put 3 as the next digit of the answer. 
Result so far: 23.0
If we take 45 away from 51, we end up with 6.
Take the next digit (3) from the dividend and append it to 6, then repeat: 63 / 15

Let's proceed to step 4:
The number 15 fits into 63 4 times, leaving a remainder of 3.
Record the quotient 4 as the next digit in the result. 
Result so far: 234.0
Subtracting 60 from 63 leaves us with 3.
Append the next digit (7) from the dividend to 3 and continue with: 37 / 15

Step 5:
When dividing 37 by 15, we get 2 with a remainder of 7.
The number 2 becomes the next digit in our result. 
Result so far: 2342.0
If we subtract 30 from 37, we get 7.
Bring next digit (9) of the dividend behind the 7 and repeat the process: 79 / 15

Step 6:
When dividing 79 by 15, we get 5 with a remainder of 4.
Write down 5 as next digit of the result. 
Result so far: 23425.0
The remainder is 4 after subtracting 75 from 79.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

On to step 7:
If we divide 40 by 15, we get 2 and a remainder of 10.
Use 2 as the next digit of our solution. 
Result so far: 23425.2
Subtract 30 from 40 to get 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Going ahead to step 8:
15 goes into 100 6 times with a remainder of 10.
The number 6 becomes the next digit in our result. 
Result so far: 23425.26
Subtract 90 from 100 to get 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Moving on to step 9:
The number 15 fits into 100 6 times, leaving a remainder of 10.
Write down 6 as next digit of the result. 
Result so far: 23425.266
Subtract 90 from 100 to get 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 final outcome is 23425.266, with a leftover of 0.001.