Multiplication of numbers is one of the four basic mathematical operations (arithmetic) that can be simply defined as the repetition of addition. To further explain the process, let me show you some related examples.
Three multiplied by two (sometimes said as 3 times 2) can be visually explained as:
3 x 2 =?
Imagine there are two bags and each bag has three apples. How many apples are there? Counting the apples can solve the answer which is 6.
So 3 x 2 = 6
If we do it using the "repeated addition method" it would be:
3 + 3 = 6 (or there are "two threes")
5 x 6 =?
5 x 6 = 5 + 5 + 5 + 5 + 5 + 5 = 30
To help you memorize the product of the multiplicand and the multiplier, tables are often provided for the ease of learning. (Attached as link)
Hope this helps :)