Alright, let's work through 5591 times 2129 step by step
5591 × 2129 = 2129 × (5591)
+ 2129 × 1 that is equal 2129
+ 2129 × 90 that equals 191610
+ 2129 × 500 resulting in 1064500
+ 2129 × 5000 yielding 10645000

= 11903239
