How to buy Dejitaru tsuka on Coinbase?

Can you please guide me through the process of purchasing Dejitaru tsuka on Coinbase? I'm new to this platform and would like to know the exact steps I need to take to acquire this cryptocurrency. Is there a specific button or section I should be looking for on the Coinbase website or app? Additionally, what are the fees associated with buying Dejitaru tsuka on Coinbase, and are there any other important factors I should consider before making a purchase? Your detailed and step-by-step explanation would be greatly appreciated.