Alright, let's work through 1591 times 5559 step by step
1591 × 5559 = 5559 × (1591)
+ 5559 × 1 that equals 5559
+ 5559 × 90 yielding 500310
+ 5559 × 500 which equals 2779500
+ 5559 × 1000 resulting in 5559000

= 8844369
