Alright, let's work through 5420 times 7021 step by step
5420 × 7021 = 7021 × (5420)
+ 7021 × 0 which equals 0
+ 7021 × 20 that equals 140420
+ 7021 × 400 yielding 2808400
+ 7021 × 5000 which equals 35105000

= 38053820
