Depends very much on the country you are in ; here you can just start doing something for money and once you get over something like 10.000 euros you make a company. Depends on the country.
Depends on your location and type of business, please give us some more information about what you're trying to do.
Fist of all you have to decide that what type of business you can do, then you will get lots of help from experienced user on Digital Point.
Have you decided which business to start. Here are the top online business ideas to get started. http://ajauctionpro.com/5-online-business-models-that-are-online-ecommerce-but-not-the-exactly-selling/
What kind of business would you like to start? Do you have any strategies in mind? It will be great if you can share that on this forum.
what your idea, how much will it cost, who would use it, where would you get the money and how will i get customers. It mostly asking yourself rhetorical questions. To start a business is not hard but maintaining it and getting customers is the hardest as it requires the most effort and time.
First of decide and make it clear what kind of business you want to start. Then, Get some basic information about that business. (like how much money needed, after that required manpower etc) My best suggestion is get some experience of that field (learn all the aspects of business on someone else cost) and then start on your own. All the BEST
Very fast! .... nothing comes at very fast bro, opening and operating a business need patience, planning and strategies. else if you want to make quick money, try some affiliation. These are quite impressive.
I was being ironic and i just replaced "i want to start business" from the OP with "i want to become very rich very fast" as we all know such thing does not exist. The question, the way it is raised is ridiculous. "I want to start business - how ?". What business? Selling auto parts or opening a pawn shop, maybe you are skilled with your hands and you want to open a carpenter shop? Or you want to make quick buck online? Sell something or resell or whatever. I am amazed by the amount of replies of such a dull question, completely lacking any meaning.
Its very easy but first of all please decide better root for you business and location which is most profitable to you .