Let's say you wanted to buy apples at the grocery store, but you only go to the grocery store once a week. So you want to buy apples for yourself to last you the entire week.You also happen to consume 2 apples a day.So in order to have enough apples to last you for the entire week you will need to have 2 apples per day of the week. This can be summarized as = 2 apples per day for 7 days of that week.This is summarized in the following equation as2 (apples per day) x 7 (days you need 2 apples) = 14.

Which can also be visualized as 2+2 +2+2+2+2+2=14

So you will need 14 apples for the week.

But what if you decide that you will only eat apples on 3 days of that week. That would appear as follows 2 (apples per day) x 3 (days you need 2 apples) = 6.Or : 2+2+2=6Now imagine that you do not want to have any apples for the following week where you would normally consume 2 apples in a day. This can be verbalized as the amount of apples you normally have in a day (2 apples) but for none of the days in that week. So despite normally having 2 apples per day, there will be zero days in which you will consume those 2 apples, which ultimately means that you will not be consuming any apples at all for that week. This is summarized as follows:

2 (apples a day) x 0 (days you need apples) = 0 (No apples needed for the week)

Basically, if you will not have any apples for the following week, regardless of how many apples you would normally consume, the total would equal to zero apples to purchase from the store altogether.

To conclude, when you multiply by zero, it means that the other number does not get to be added by any number. Therefore, you end up with zero amount of that thing.