Complex sentence: After a complex and successful heist, the gang complete the robbery and return to their farmhouse hideout to lie'low' and split the spoils, where they find they have stolen over £3,000,000 much more than they have anticipated or is reported by the media.
Split into simpler sentences: After a complex and successful heist, the gang return to their farmhouse hideout to stay out of sight and split the spoils. They find they have stolen over £3,000,000 − much more than they have anticipated, or is reported by the media.