Nvidia Corp Dividend Purification

Salam,

I am new to investing and I don’t have anyone to guide me personally. I only have the internet community.

I started investing two years ago. My Nvidia Corp dividend shows the total as “0.32”.

How do I purify this figure and at what percentage as this is for the past 2 years?

Do I purify as and when I get dividends or annually?

We all have to start somewhere so apologies if this sounds vague. I want to do right with my money.