I'm getting 203 from those calculations too, but you've got an odd number there. This is for DPPt, right? You should change your party to four. 209 - 4 (because of 128 steps with four in the party) - 1 (for Azelf) = 204
Divide by 2 and you get 101 journal flips exactly. You do the 101 flips to a caught pokemon page, then exit the journal and talk to Azelf.
Divide by 2 and you get 101 journal flips exactly. You do the 101 flips to a caught pokemon page, then exit the journal and talk to Azelf.