śata-haste - with one hundred hands; karena - He does; yena - as if; kṣālana-mārjana - rinsing and washing; pratijana-pāśe yāi' - going to the side of everyone; karāna śikṣaṇa - He was teaching them.

It appeared as though Śrī Caitanya Mahāprabhu were cleansing and washing with a hundred hands. He approached every devotee just to teach him how to work.