Hi. I'm guessing those are Colocasias and not Alocasias. You can direct those half-way to 1/3 down into soil-filled pots, keep them well-watered, and they should sprout in about a couple of weeks. The pots can be small to start with if that's better for you. After sprouting and you see roots, you can cut the runners when the runners start to thin and dry.

See my: August 23, 2017 at 7:26PM post here on this thread: [https://www.houzz.com/discussions/giant-ee-propogation-division-dsvw-vd~1687581[(https://www.houzz.com/discussions/giant-ee-propogation-division-dsvw-vd~1687581)

I had about 2 doz plants come from the runners shown in that post. I had many more a couple months after that. I only had room to make some into separate plants after they took root. My objective at the time was to see if the runners would help the parent plant somehow if I did not cut them. I think they may have.

Legend, thank you so much!! I was wondering the same thing!! And yes, pretty sure they’re all Colocasias and not Alocasias... my Alocasias - my Alocasias seem to produce pups very close to the parent plant, not on runners like this...