SAN FRANCISCO — The decision by the European Commission on Tuesday to hit Google Inc. with a record antitrust fine of 2.42 billion euros ($2.7 billion) was hardly a surprise. EU officials had been telegraphing that the move was coming for weeks ahead of time.

But it's also not the last word in Google's testy relationship with EU competition regulators. Kent Walker, the company's top lawyer, indicated in a blog post Tuesday that Google intends to appeal the decision. Here's an overview of what will likely come next in the saga and how Google found itself in the crosshairs of the commission in the first place.

Can Google Fight the Decision?

Yes. Google can—and likely will—challenge the decision of the European Commission, according to Damien Geradin, an antitrust attorney at Euclid Law in Brussels. It will first have to appeal to the General Court in Luxembourg; if it loses there, it can appeal to the highest court, the European Court of Justice. But that is likely to be a long and winding road.

Take the example of Intel Corp., the subject of the next-largest EU antitrust fine ever, after Google. Intel was hit in 2009 with a 1.06 billion euro fine for antitrust behavior in the chips market. The company sued, and after initially losing at the General Court, the ECJ's advocate general last October reversed that ruling in an interim decision. A final order is still pending.