Final answer:
To divide 10 by 5, you determine how many times 5 can fit into 10, which is exactly two times. Therefore, the result of 10 divided by 5 is 2.
Step-by-step explanation:
When you divide 10 by 5, you are splitting the number 10 into 5 equal parts. To do this division, you simply need to determine how many times 5 can go into 10 without going over. Since 5 times 2 is 10, 10 divided by 5 equals 2. So, the answer to your question, 'What's 10 divide by 5,' is 2.