Do you think you explain well, or badly?
Edit: Some examples.
Bad explaining: So um, you need to use that tool.. um.. the screwdriver! Yeah, to stick it into the space of the screw and turn it. Then take out the batteries and buy AA or AAA batteries I don't know, find one that fits. Then put it into the remote, then use the screwdriver and um... put the screw in that place, and then spin it to make sure it's secure.
Like Siri: Go to Google and type: How to get the batteries out of a remote.
Too general: By putting the batteries into the remote.
Perfectly: So, put the screwdriver into the screw and turn it until its loose. If there's 2 screws, do the same thing again. Afterwards, put the appropriate batteries to the remote. Then, just secure it by putting the screw in the appropriate place and then turn the screw until it is tight. And there you have it!
Give every single details: Use that size 15 screwdriver for that screw, then make it loose by turning it. Then, buy AAA sized batteries because the remote has AAA iszed batteries. Then, just put the cap back,then place the screws in that small hole. Then use the size 15 screwdriver can screw it back in.