How many cells can be produced at a time in multiple fission ?
Multiple fission at the cellular level occurs in many protists, e.g. sporozoans and algae. The nucleus of the parent cell divides several times by amitosis, producing several nuclei. The cytoplasm then separates, creating multiple daughter cells.
Some parasitic, single-celled organisms undergo a multiple fission-like process to produce numerous daughter cells from a single parent cell.