The N43xx are optional line numbers, so you can do it with or without a line number. It needs to be before the M30, because M30 rewinds back to the beginning. Here are two ways to do it.
N4280G00Z0.8000
N4290G00X0.0000Y0.0000
N4300M09
M883
N4310M30
%
or
N4280G00Z0.8000
N4290G00X0.0000Y0.0000
N4300M09
N4305 M883
N4310M30
%