Here's an example of a simple supercruise scan netting two data mats (blue 'Collected' in Info panel). I use the term 'drop' but there is nothing to pick up. These are simply downloaded and collected automatically. All ya gotta do is initiate the scan. Usually, when you're inbound to a station, there will be a number of ships flying ahead of you, flying in and out of the station, and it's a simple matter to lock them up and let the scan go. The majority of scans will net no mats, at least for me. But some will, and it doesn't get any easier really.