This is a program I wrote to create large numbers on 1x2.75 inch labels.  It is set up for the Star NX-1000 printer, but I have included complete documentation in the form of REM statements. If you have another type of printer, you need to know the
control codes for Quadruple print (width & height), line spacing (for the 1x2.75in labels, 18/72nds works perfectly, for other size labels, you'll need to trial and error to get the right spacing).