Alright, let's work through 4840 times 4866 step by step
4840 × 4866 = 4866 × (4840)
+ 4866 × 0 giving us 0
+ 4866 × 40 yielding 194640
+ 4866 × 800 that is equal 3892800
+ 4866 × 4000 resulting in 19464000

= 23551440
