Go to View>Show Print Tiling

then go to File>Print

From the page Size select A4

In the Print Dialog select from the Scaling optionsTile Full Pages from the drop down

Youy will see the tiling you need  9 pages BTW

One of the problems you cane see right away is that the pages are butted by the tiling and your printed might need a border on all edges.

So tio compensate for this you need to have a little bit of an overlap that changes the tiling but when you trim the paper to the edge of the actual print area on the page and lay the pages on top of one another you will be able match them.

I chose .5 inch for the overlap. You will have to figure out the amount you need for your printer.

So in the print dialog to the right of the Scale Option Enter an over lap amount as well

You can do it with separate artboards but you will have a hard time when it comes to the overlap.