Welcome to Hive!

You can trade your Monero for Hive using your exchange of choice, withdraw the Hive into your Hive wallet, then convert it to swap.hive which can be traded for starbits. Conversions between Hive and swap.hive can be done by clicking the swap button in the Hive Keychain extension.

or

Trade your Monero for any of the external currencies supported by hive-engine, deposit it into your Hive wallet, then trade that currency for swap.hive and then starbits. For a list of supported currencies and instructions, go to https://hive-engine.com/@yonyonsson/wallet and click the deposit button near the top of the page.