Alright, let's work through 6653 times 2639 step by step
6653 × 2639 = 2639 × (6653)
+ 2639 × 3 giving us 7917
+ 2639 × 50 resulting in 131950
+ 2639 × 600 yielding 1583400
+ 2639 × 6000 what gives us 15834000

= 17557267
