How to buy bigtime on Coinbase?

Could you elaborate on the process of purchasing Bigtime tokens on Coinbase? As a cryptocurrency enthusiast, I'm keen on understanding the steps involved in acquiring this particular digital asset. Would you kindly break it down into the initial steps such as locating the asset, initiating a trade, confirming the details of the purchase, and any additional steps needed for a successful transaction? I'm particularly interested in understanding the security measures Coinbase employs to safeguard my funds during this process. Additionally, are there any fees associated with purchasing Bigtime tokens on Coinbase, and how can I minimize these costs? Your insights would be invaluable in guiding me through this purchase process.