Alright, let's work through 5591 times 9821 step by step
5591 × 9821 = 9821 × (5591)
+ 9821 × 1 that equals 9821
+ 9821 × 90 resulting in 883890
+ 9821 × 500 which equals 4910500
+ 9821 × 5000 giving us 49105000

= 54909211
