Questions that will require a lot of back-and-forth to arrive at a solution aren't generally a good fit for Stack Exchange.
Part of that is because the ultimate goal is to generate a knowledge base of issues and solutions that will be helpful to far more than the original Asker. Actually, that the Asker gets a solution at all is kind of secondary; it's those future readers who find the exact solution to the exact problem they're having and, as a result, don't ask a question are the real target audience.
Ideally, a question has all of the information in it that a knowledgeable person needs in order to craft a cogent answer. Sometimes there's some key bit of information missing, and for that we have comments to request clarifications, but that's not to say there should be a lot of chatter in the comments. That's one reason why after a few comments from the same people you're prompted to take the conversation to chat. In an ideal scenario, there may be a couple of comments to get clarification added to a post and, once that clarification has been added, those comments are deleted.
When you start getting a lot of "try this", "okay now try this", etc., ad nauseum, you get into territory that's going to be very specific for one particular person and not generally applicable to others.
There are plenty of other places online where you can get that kind of help. The Google Product Forums spring to mind. So does Stack Exchange chat (if anyone happens to be online), but such questions don't generally fit will at Stack Exchange.