Alright, let's work through 4340 times 4678 step by step
4340 × 4678 = 4678 × (4340)
+ 4678 × 0 that results in 0
+ 4678 × 40 yielding 187120
+ 4678 × 300 giving us 1403400
+ 4678 × 4000 giving us 18712000

= 20302520
