That doesn't sound right. As a rough rule of thumb, each liter of starter wort will result in 50-150 billion new cells, depending mostly on access to oxygen.
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a10t2 is right. A yeast culture will saturate at around 10^8 cells/ml (aka 100 billion cells per liter). It really shouldn't matter that you're "only" putting in 44 billion cells... they'll double twice and that's likely it, assuming a 1L starter. (Source, just in case you care: my PhD was in a yeast genetics lab... did more cell counting than I care to remember)
Just do what Denny says... it'll be good.