You can find the number of votes with the API. By visiting https://discourse.example.com/t/#{topic_id}/posts.json you’ll get the JSON data of all the posts within the topic. The #{topic_id} is the number you see in your browser’s URL bar when you visit a topic.
The API will return a large JSON object where you’ll find the number of votes for each option under the polls key.
Or you could use the Discourse Data Explorer if you want to find out even more about the polls. The query in Is it possible to see who voted in polls? - #12 by gerhard should be a good starting point…