No. This is not right. Not one little bit. I make 4 figures a month here and I promise you, it's NOT true. I do not post that much. I post 4-10 posts a month. Seldom more than 3 per week.
Here is why the frequency idea is wrong. There are 47,000 new posts here every day. That's 1,958 new posts every hour.
You can not "quantity" your way to the top. You can only "quality" your way to the top. You would be far, far better off to take longer to craft something that stand out that to go for volume.
Since you are new, you might find this helpful: https://medium.com/feedium/proof-that-most-medium-tips-arent-true-or-helpful-d3161a793b29
Happy writing and nice to meet you! :)