Creating a chart out of text separated by commas

Part of my problem is that I do not have the vocabulary to search for help. So my apologies if I overlooked this exact question in my search.

I have a online survey I am administering, and one of the questions is "Which upcoming Saturdays are you available? (Check all that apply)"
the output, which ends up in a single cell is something like this:
"September 15, September 22, September 29, October 6, October 13, October 20, October 27"

I am wondering how to easily make a bar chart out of this sort of text data separated by commas.
The best I have come up with is manually separating them out into their own columns, then using count and charting from that.


I have attached a sample file.

Thank you in advance.

-MC