To start in Azure, the first thing you'll need is an account. Go to https://azure.microsoft.com and get yourself a free account to get started, or use the corporate account that is already in use. Another possibility is to use Azure with a Visual Studio Dev Essentials subscription, a Visual Studio subscription, or an Enterprise/Dev subscription.
If you are using a free account, you'll get some credits to start, some of the popular services for a limited time, and some services that will stay free forever, such as the container service. You can find the most recent list of free services at https://azure.microsoft.com/en-us/free. You won't be charged during the trial period, except for virtual machines that need additional licensing, but you do need a credit card to identify yourself.