How does the same idea encode a long number with a 00–99 PAO?

Chunk the digits into groups of six: the first 2 digits give the Person, the next 2 the Action, the next 2 the Object.

* A number PAO reads six digits as one scene: 15/27/38 become Person/Action/Object. *

A number PAO reads six digits at a time. For 152 738 …, using this system's own pair list:

• 15 → its Person → Wilhelm Tell
• 27 → its Action → freaking out (Nicolas Cage's move)
• 38 → its Object → a black poodle (Mephistopheles' prop)

→ one composite image: Wilhelm Tell freaking out with a black poodle — a single scene encoding all six digits, placed at one locus. The next six digits become the next composite. This is how competitors store hundreds of digits with a manageable number of images and loci.

Go deeper:

• Six-digit PAO chunking (Wikipedia) — describes 00–99 PAO reading six digits per image.