##42## divided by ##0## is ##oo##.

##42## is a positive number. Any number cannot be divided by ##0##, but if we divide a very small number close to ##0##, the result is a very large number and smaller the number, lager will be the result. In short, we can say that if say ##42## is divided by ##x## and as ##x## approaches ##0##, the result tends to infinity.

Hence, one can say that ##42## divided by ##0## is ##oo## (i.e. infinity)..