02/15/23 @ka777ching. Not knowing when you arrived or when you left it's impossible to say, but while international flights were disrupted by the covid pandemic, the Brazilian government granted several automatic extensions of several months each during which no fines were assessed on the assumption that people couldn't leave even if they wanted to. It could be that you benefitted from one or more of those, after you used up your maximum of 180 days.
As for fines, if you estimate 1% per month, counting the month of your departure to the month of your next arrival, you should be ok.