No problem, we've got 84192365 and 87378827 to multiply
84192365 × 87378827 = 87378827 × (84192365)
+ 87378827 × 5 yielding 436894135
+ 87378827 × 60 which equals 5242729620
+ 87378827 × 300 giving us 26213648100
+ 87378827 × 2000 what gives us 174757654000
+ 87378827 × 90000 producing 7864094430000
+ 87378827 × 100000 giving us 8737882700000
+ 87378827 × 4000000 producing 349515308000000
+ 87378827 × 80000000 yielding 6990306160000000

= 7356630096055855
