No mystery to it. Here is exactly what happens from the moment you call to the moment we hand the job back.
The operator should walk or drive the property lines with you before quoting. Mulching the neighbor's brush by mistake is a real and expensive problem on unmarked rural lots.
Trees to save get flagging tape. So do wellheads, septic lids, buried lines, survey pins, and drain field edges. Call 811 for utility locates before any machine touches the ground.
The crew cuts an outside lane first to establish clean lines and give the machine room to turn. This is also when unmarked obstacles usually turn up.
The machine works the interior in overlapping lanes, dropping stems and grinding them where they fall. Larger trees get cut down first, then processed on the ground.
A second pass evens out the chip mat and knocks down high stobs. Walk the site with the operator before the trailer leaves and point out anything left standing.
None of this is required — it just makes the visit quicker.