Registration of online business

Can someone guide me on how to register online business. I have started online teaching after years of experience and would like to register my classes. How that can be done?

Thanks

Here's a step-by means of-step guide on the way to begin an online business. Step 1: Choose a Business Structure. Step 2: Decide Where to Form Your Business. Step three: Choose a Name. Step 4: Get a Domain Name. Step 5: File Your Business Formation Papers. Step 6: Set Up Your Finances. Step 7: Understand Sales Tax and Licensing