Go up the stairs at the 8th exit and Ill be at the exit.
出口 - exit
8番 - eight, number 8, 8
8番出口 - 8th exit, exit 8, exit 8
階段を登る - climb the stairs
出たとこにいる - I’m at the exit, ill be there
8番出口の階段登ってきて、出たとこにるよ
Go up the stairs/climb the stairs at the 8th exit and ill be at the exit!