The SANB share price on June 30, 2013 was $.25/share. Divide $10,400,000 by $.25 and you get 41,600,000 shares held by non-affiliates (free trading) as of March 25, 2014.
No need to estimate the float when you know the float by reading the SANB filings.
The float is 41,600,000 shares as of March 25, 2014 and might be slightly higher now.
Hopefully people consider reading SEC filings a better way to obtain factual information than by reading something like "Judging from the trading, float is estimated...."