You can't format a HD floppy to 880kB capacity on your PC. It will have to be 720kB. But yes, your Amiga will then be able to read it and write to it, provided you have CrossDOS enabled on that floppy drive.
You will know whether you have CrossDOS installed, by the appearance of another floppy disk icon on your desktop labelled PC0:??? every time you insert an Amiga formatted floppy disk.
a DOS-formatted floppy disk should be mounted as PC0: if you insert it in DF0:
Note that it is usual to see another icon labelled DF0:??? on your desktop when you insert a DOS-formatted floppy.