Help with 'Frequency' formula

I have a list of orders (formatted as an Excel table) that is quite long. I've written a formula that will list all of the destinations that appear, and I want to write a formula that will count how many times that destination appears. I've found some help online and I've experimented with the frequency formula, but I'm not getting the desired results. I've attached a sample sheet with some data to illustrate what I'm doing, and what I'm trying to accomplish. I think I'm on the right track with the formula, but I'm not quite there yet.

Also, if there's any way to get my desired result without having to have the formula be so long, I would prefer it. If not, I'll live with whatever the answer is!

Thanks in advance for any help.