Um...I believe your math is way off.
Hm, could be.
2,100,000,000 : 2.1 Bn 316,100,000 : 316.1 Mil ------------- 2,100,0ØØ,ØØØ : Zero Canceling 316,1ØØ,ØØØ : Zero Canceling ------------- 21,000 : Post-Canceling 3,161 : Post-Canceling ------------- 5+1+ noninteger-remainder ________ 3161 | 21000 -15805 ----- 5195 -3161 ---- 2034 2034 / 3161 is approx. 2/3 (OR .666) So the 6.6 is correct...Ah, I got it -- I left the M marker on my notes -- (stupid order-of-magnitude errors!) -- it's $6.6.
This article puts the website cost at $5bn, and I don't think I've seen anything about what's been paid for it in government-employee/-hardware-infrastructure costs... So this all is just a lower-bounds anyway.