Alright, let's work through 84510579 times 36451447 step by step
84510579 × 36451447 = 36451447 × (84510579)
+ 36451447 × 9 that results in 328063023
+ 36451447 × 70 yielding 2551601290
+ 36451447 × 500 that equals 18225723500
+ 36451447 × 0000 what gives us 0
+ 36451447 × 10000 producing 364514470000
+ 36451447 × 500000 giving us 18225723500000
+ 36451447 × 4000000 which equals 145805788000000
+ 36451447 × 80000000 what gives us 2916115760000000

= 3080532891357813
