surfing on a tablet is the same as surfing on a pc , I use Kaspersky av on pc and android , your av should destroy suspect downloads before you get chance to use it and if you try to look at a site on your tablet regardless of what site it is !!!! your av on your tablet should tell you it is blocking you and the reason why.
example ... go on some games tips sites and just opening it up will throw up an alert such as xyz tried to infect you , this is because the owners of the site don't always know its been hacked.
as well as av software get antimalware bytes off the google play store it throws up pup warnings when you scan with it.
STORAGE TIP... on the latest tablets the option to transfer apps to an sd card has been removed from setting , get app manager 3 from google store , when opened click the 3 bars top left and choose move apps.