I'm a bit confused.

I believe the meseta limit is about 99 mill, yet I hear some people selling items for like 100 million or even 250 million.

I believe you do this through trading, but how does one do this? Do you like give the seller stack after stack of 99mil? Doesn't that put you on a risk of getting scammed?

I'd like to try this in the future when I'm finally leveled enough to hunt for items worth more than a stack - I don't want to sell an item for 99 mill when I know it's worth more than twice than that (plus I got 2 characters to feed XD).

Any thoughts?