Alright, let's work through 5406 times 4121 step by step
5406 × 4121 = 4121 × (5406)
+ 4121 × 6 yielding 24726
+ 4121 × 00 that results in 0
+ 4121 × 400 that equals 1648400
+ 4121 × 5000 that results in 20605000

= 22278126
