The expression "10 ÷ 2" represents a division problem where the number 10 is divided by the number 2. In this case, you are trying to find out how many times the number 2 can fit into the number 10. Division is one of the four basic arithmetic operations, along with addition, subtraction, and multiplication. When you perform the calculation, you find that 10 divided by 2 equals 5. This means that if you have 10 items and you want to split them into groups of 2, you will end up with 5 groups. This concept is fundamental in mathematics and is used in various real-life situations, such as sharing or distributing resources.