Alright, let's work through 84533941 times 47172258 step by step
84533941 × 47172258 = 47172258 × (84533941)
+ 47172258 × 1 yielding 47172258
+ 47172258 × 40 resulting in 1886890320
+ 47172258 × 900 yielding 42455032200
+ 47172258 × 3000 giving us 141516774000
+ 47172258 × 30000 giving us 1415167740000
+ 47172258 × 500000 giving us 23586129000000
+ 47172258 × 4000000 producing 188689032000000
+ 47172258 × 80000000 producing 3773780640000000

= 3987656874608778
