Alright, let's work through 6242 times 3640 step by step
6242 × 3640 = 3640 × (6242)
+ 3640 × 2 which equals 7280
+ 3640 × 40 that equals 145600
+ 3640 × 200 yielding 728000
+ 3640 × 6000 resulting in 21840000

= 22720880
