Yep, so I would draw your first structure, one arrow to take you to the circled structure then one further arrow to take you to your final structure.
You will remember from A level that benzene is unreactive, because it is aromatic (ie the 6 electrons are delocalised all the way round the ring) and therefore very stable
When benzene reacts with an electrophile, the intermediate is the structure we have here. Notice that now the electrons are not delocalised all the way round the ring (because one of the carbon atoms is saturated), so this intermediate is a lot less stable than the starting benzene ring, this big energy difference means that there is an energy barrier to reaction, so benzene reacts slowly if at all.