Alright, let's work through 5390 times 9771 step by step
5390 × 9771 = 9771 × (5390)
+ 9771 × 0 which equals 0
+ 9771 × 90 that is equal 879390
+ 9771 × 300 yielding 2931300
+ 9771 × 5000 giving us 48855000

= 52665690
