Alright, let's work through 2639 times 4458 step by step
2639 × 4458 = 4458 × (2639)
+ 4458 × 9 resulting in 40122
+ 4458 × 30 that equals 133740
+ 4458 × 600 producing 2674800
+ 4458 × 2000 what gives us 8916000

= 11764662
