Alright, let's work through 27864816 times 64779315 step by step
27864816 × 64779315 = 64779315 × (27864816)
+ 64779315 × 6 giving us 388675890
+ 64779315 × 10 yielding 647793150
+ 64779315 × 800 which equals 51823452000
+ 64779315 × 4000 producing 259117260000
+ 64779315 × 60000 producing 3886758900000
+ 64779315 × 800000 that is equal 51823452000000
+ 64779315 × 7000000 which equals 453455205000000
+ 64779315 × 20000000 that is equal 1295586300000000

= 1805063693081040
