Open the file with your Business Card with Crop Marks.
Go to Select – ALL
Go To Edit Copy
Go To File – New
Follow the specifications for the page set up below
Go to Edit – Paste
With your business card still selected go to Object – Group
This will make all the pieces of your card stick together.
Repeat Pasting your card 7 more times and overlap your crop marks until your paper looks like this:
Make sure your crop marks overlap and match the above picture.