Cut the decimal expansion of π into parcels of 10 digits:

Mathematician John Conway points out that the chance is only about 1 in 40,000 that all of the digits 1234567890 will appear in any given parcel … and yet there they all are in the seventh.

(Via Alfred Posamentier and Ingmar Lehmann, π: A Biography of the World’s Most Mysterious Number, 2004.)