Not a dumb question at all.
We rarely takeoff at full power (TOGA) but use what's called a FLEX takeoff. This simply put is just a reduced power setting to preserve engine life when the runway doesn't require the use of TOGA power. Even at TOGA power the thrust is reduced soon after takeoff. In the cruise the thrust is normally around 84-87% depending on weight and speed.
Hope this answers the question.
B&B