How much space are we talking about here?Once I got my wheel to that point, i got behind the bike and spread the frame apart, and it dropped in. Be sure the flats on the threaded axel and the washers with the little nub are lined up to the dropouts. A second person might help.
A couple of mm might just be too much paint on inside of dropout.
A cm or more probably indicates they used the wrong frame for the hub (or the wrong hub for the frame).
This would not be good. That is unnecessary, and perhaps damaging, stress on the frame (and hub).