Print Tiling?

Here is my description of a suggested workflow.

First you need to figure out how many tiled pages you need to print the artwork at a large size.

You need to decide on a bleed size.

You will also need a PDF preset that includes Trim Marks and uses the Bleed from the document.

Create a new document.

Select a page size that you will use on your printer and subtract 2 times the bleed you want to use from the width and height.

I have chosen a horizontal A4 (297 X 210 mm) want 10 mm bleed and subtracted 20 mm from both dimensions to get 277 X 190 mm. (you may want to make a note of these sizes for future reference)

Suppose you need 4 pages to print the artwork, create 4 Artboards with 0 spacing between them and 2 rows (don't enter the bleed yet). Click OK

Choose File > Document Setup… and enter the Bleed value (in this example 10 mm) for all sides.

Create a new PDF preset.

Choose Edit > Adobe PDF Presets… select an existing preset (I did choose a High Quality Print) and click the + to create a new preset based on this one.

Give it a name such as Tiling Preset.

Uncheck: Preserve Illustrator Editing Capabilities (you only want to export a single artboard instead of keeping all of them in each file).

For Marks and Bleeds:

Marks: Check Trim Marks, set Offset to 0

Bleeds: Check Use Documents Bleed Settings

Paste and scale your artwork into your multiple artboards document.

Go to File > Export > Export for Screens

Select Artboards > All

Select PDF as export format

Click the cog wheel  for Advanced Export Settings, choose PDF, select your Tiling Preset and click Save Settings.

Now you can Export your Artboards.