Code:
Dim q1 As Double
Dim q2 As Double
Dim res As Double

q1 = 17.59
q2 = 1300

res = q1 / q2

MsgBox res
Result = 1,35307692307692E-02

With Windows calculator

17.59 / 1300 = 0.0135307692 ......

Someone know why?