You should choose a suitable, relevant and catchy name for your business. To check the availability of desired name, visit the website of your county clerk. Enter the business name there to check the availability and fill the Doing Business As (DBA) form. You will have to pay certain amount of money to register the business and the name will be yours. Paying the registration fees here, will recognise you as a business owner.
To register it as an LLC, you should visit the website of state secretary, where you will be given the option to register it as a Sole Proprietorship, Partnership, Corporation or a Limited Liability Company.
After choosing the LLC option, you should pay the required amount to complete the process of registering your business. You can make the payment via debit card or credit card, whatever suits you well. You should understand the business formation option clearly as you will need them later.
You can also seek help from the outside. You will find plenty of lawyers and brokers, who specialise in this field. You can find them over the internet very easily. They just charge a small fee for their services and will do the necessary work for you.