"Grandma's noob question"

#PokemonGO: My grandson(6 yo) got me into pokemon go a couple months ago. That's right, I said my grandson. So while I am sure I am a noob, this question will prove it. How do I get A LOT of stardust? I have friends and they have over a million in stardust, I see pictures in here of players with over a million in stardust and I am frustrated. I need more stardust. From catching to raids I daily can get about 10,000 stardust. But then, I use that to power up my mons and it goes down to nothing super quick. I currently have a whopping 1900 stardust. I only have 2 star pieces so I don't want to waste them since I don't know what I am doing yet. Any help out there? via /r/pokemongo https://ift.tt/2FWt9bG