351712 ÷ 15 
We're looking to find how many times 15 goes into 351712.

Advancing to step 1:
3 divided by 15 is 0 with a remainder of 3.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 3 after subtracting 0 from 3.
Grab the next digit (5) from the dividend, add it to 3, then carry on: 35 / 15

Going ahead to step 2:
15 goes into 35 2 times with a remainder of 5.
The next digit of our result is 2. 
Result so far: 2.0
Subtract 30 from 35 to get 5.
Take the next digit (1) from the dividend and append it to 5, then repeat: 51 / 15

Advancing to step 3:
The number 15 fits into 51 3 times, leaving a remainder of 6.
The number 3 becomes the next digit in our result. 
Result so far: 23.0
Subtract 45 from 51 to get 6.
Include the next digit (7) from the dividend after 6, then repeat: 67 / 15

Let's proceed to step 4:
The number 15 fits into 67 4 times, leaving a remainder of 7.
Put 4 as the next digit of the answer. 
Result so far: 234.0
If we subtract 60 from 67, we get 7.
Bring next digit (1) of the dividend behind the 7 and repeat the process: 71 / 15

Step 5:
If we divide 71 by 15, we get 4 and a remainder of 11.
Put 4 as the next digit of the answer. 
Result so far: 2344.0
The remainder is 11 after subtracting 60 from 71.
Include the next digit (2) from the dividend after 11, then repeat: 112 / 15

Moving on to step 6:
15 can be fit into 112 7 times, resulting in a remainder of 7.
Use 7 as the next digit of our solution. 
Result so far: 23447.0
Subtracting 105 from 112 leaves us with 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

Moving on to step 7:
If we divide 70 by 15, we get 4 and a remainder of 10.
Record the quotient 4 as the next digit in the result. 
Result so far: 23447.4
Subtracting 60 from 70 leaves us with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

On to step 8:
When dividing 100 by 15, we get 6 with a remainder of 10.
Put 6 as the next digit of the answer. 
Result so far: 23447.46
The remainder is 10 after subtracting 90 from 100.
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:
15 can be fit into 100 6 times, resulting in a remainder of 10.
The next digit of our result is 6. 
Result so far: 23447.466
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.

After the division, we end up with 23447.466 and a remainder of 0.001.