If you're looking for a meeting place or a good stop around ½ or halfway between Ocala and Groveland, you can try Monarch, FL, which is about half an hour south of Ocala, or about half an hour northwest of Groveland.
About ⅓ or a third of the way, you can stop at Pedro, FL. This is about 18 minutes south of Ocala.
About ¾ or three fourths of the way, you can stop at Okahumpka, FL. This is almost an hour southeast of Ocala, or about 16 minutes north of Groveland.
If you drive straight through without stopping at all, the total distance is 56 miles. The distances shown above don't include local roads to get into each town, so if you're planning a long road trip, make sure you factor in traffic and road conditions, rest stop breaks, and interesting detours along the way. If you're in a rush, you can do the trip with zero stops, and your total travel time would be around 57 minutes.