I'm newbie to Ethereum, and finding answers of some questions that I have.
I have learned about SC deployment that
deploying the contract cost 0.01072934 ether, or about $3.21 USD
So, where that cost goes? it that goes to miners? or anywhere else?
Yes, all ether that is paid for transactions is rewarded to the miner of the block a transaction is included in.
All the gas cost directly goes to miner who mined the blockchain that contains your transaction.
Check out the field
Block Reward of this block (5816964) which is 3 + 0.0619125919 ether. It is the sum total of 3 ether static reward and Tx fees (gas cost) in decimals.