i just bought piggy like how many piggys i need to stake to get like 10,000 a day from staking?

Well let's see. 10,000 a day is 3,650,000 a year. Piggy provides a 3% interest rate (annual), so to get 3,650,000 a year you're going to need...
121,666,667 PIGGY. About 1/4 of all PIGGY in existence.
Oink! :-)