Using the information you've provided I've formatted your response to make it readable...
0.8^2 = 0.64
0.64 / 6371000 = 4077440
4077440 * 84000 = 342504960000
342504960000 / 101.971621 = 3358826275.7929483145119366102849 grams
(velocity^2 / radius) * mass = 342,504,960,000 grams
342,504,960,000 / 101.971621 = 3,358,826,275.7929483145119366102849 newtons
So based on your response your answer is about 3,358,826,276 newtons or 342,504,960 kg, is that correct?
We're getting close but I don't think we've arrived at a BTC reward yet...
Problems I can see:
a) your giving results from your force formula in grams not newtons.
b) your mass is still incorporating a velocity of 464 m/s to get 84 kg.
c) many other issues.