There are two artists going by the name of Division by Zero 1) Division by Zero is a polish progressive metal/rock band created by artists who treat music as a constant part of their lives. The band's foundation was a process rich in twists and turns. Before starting the band its members met each other in different, various projects: Leszek Trela and Michał Wieczorek formed Abnormal Fiction. After they split up, Leszek teamed up with Patryk Kumór and they started a band called Hallow. Michał joined the band called Bronx in which Mariusz Prętkiewicz played drums already.