shashi1223 is right, you can do this using the TouchUI as described above. Here is a GIF:
However if you are planning to do some kind of bulk delete or if you want to get a list of all references in a more structured format, you can use the /bin/wcm/references.json webservice like in this example:
OOTB for every asset if we you just select an asset without going into an asset for editing, you can see an option for "Content only" in left top Panel Header below "AEM Logo". There you can select "References" which will give the list of pages where this asset has been used.