How often do you go over your limit?

Hi all, sorta new here still. For the past few weeks I've been seriously tracking in MFP. I used to kinda half track, and that got me nowhere (obviously).

My limit is 1,240 right now, and I'm trying to lose weight. My TDEE is around 1,800 last I checked. I've gone over a few days by anywhere from 14 to 300 calories.

How often do you folks go over, and by how much? Have you notice it affecting you at all in any way?