Alright, let's work through 4782 times 639 step by step
4782 × 639 = 639 × (4782)
+ 639 × 2 that equals 1278
+ 639 × 80 producing 51120
+ 639 × 700 which equals 447300
+ 639 × 4000 resulting in 2556000

= 3055698
