The how in front of your question isn't necessary, because for 99% of the world's population, you won't be. Sure you'll be remembered for a while by any surviving friends and family, but nothing long term. Our generations might even make it a little longer thanks to the internet, but when it's all said and done most won't even be a blip in history.
A perfect example of this is my Grandpa. He died when my mom and aunts were kids, so neither me nor any of my cousins knew him. So when our parents die, his memory dies with them. It doesn't matter how great he was, or how many people he helped, or how many lives he affected.
The real question is Do you want to be remembered, or better yet, What are you doing to be remembered. Unless you are doing something that drastically affects the world, good or bad, the sad truth is you won't be.