Firstly find out a periodical suitable for publication of your work. Check whether it publishes hard copies only or it is an online journal and how much time it takes to publish papers. Choose for peer reviewed periodicals because the reviewers’ comments and good editing will help to improve your MS. Some periodicals ask for page charges; if you can pay, then there is no problem, otherwise avoid those periodicals. Do not go for online journals which publish very quickly without reviewing and do not show the proof. Every chance there will be mistakes in the published papers.
Go through the ‘Instructions for the Contributors’ and prepare your MS accordingly. Also see some papers published in that periodical for the desired format.
These are some of the points which you should be aware of.