You can envision your bank account, much like the one you have now, but with a few more digits at the end. (inc.com)
With regard to world - wide CO2 levels, it is not appropriate to quote more digits than is meaningful. (theoildrum.com)
Polydactylism (having six or more digits on the hands or feet) can be caused by several genetic diseases, or it can occur on its own. (science.howstuffworks.com)