Comment by Straw

Yes, that's right, dividing by that ratio essentially barely affects the number in a sense that 'adjacent' numbers in that notation give a much bigger change.

10↑↑10,000,000 / (sand grains per universe) is vastly larger than, say, 10↑↑9,999,999

So on system we're using to write these numbers, there's really no better way to write (very big)/ (only universally big) than by writing exactly that, and then in the notation for very big, it pretty much rounds to just (very big).