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 ∞ (i.e. infinity)..