Alright, let's work through 2602 times 5563 step by step
2602 × 5563 = 5563 × (2602)
+ 5563 × 2 that results in 11126
+ 5563 × 00 that is equal 0
+ 5563 × 600 that equals 3337800
+ 5563 × 2000 what gives us 11126000

= 14474926
