Over on our Docs site there are some great tutorials to get you going.
Follow the steps below to get started
Step 1: Install VirtualBox on Mac OS
Install VirtualBox on Mac OS (via Download)
On Mac OS there are two popular ways to install VirtualBox.
Once the file is downloaded, it will be in the ‘Downloads’ folder. Mount the dmg file by double clicking on it, which will launch another window that has the actual installer. That installer is called VirtualBox.pkg.
Launch VirtualBox.pkg and follow through the four steps in the installer.