Alright, let's work through 78312227 times 69722360 step by step
78312227 × 69722360 = 69722360 × (78312227)
+ 69722360 × 7 producing 488056520
+ 69722360 × 20 what gives us 1394447200
+ 69722360 × 200 yielding 13944472000
+ 69722360 × 2000 yielding 139444720000
+ 69722360 × 10000 yielding 697223600000
+ 69722360 × 300000 producing 20916708000000
+ 69722360 × 8000000 yielding 557778880000000
+ 69722360 × 70000000 giving us 4880565200000000

= 5460113283295720
