Alright, let's work through 4782 times 645 step by step
4782 × 645 = 645 × (4782)
+ 645 × 2 that equals 1290
+ 645 × 80 that results in 51600
+ 645 × 700 which equals 451500
+ 645 × 4000 resulting in 2580000

= 3084390
