Alright, let's work through 1587 times 1439 step by step
1587 × 1439 = 1439 × (1587)
+ 1439 × 7 producing 10073
+ 1439 × 80 that is equal 115120
+ 1439 × 500 resulting in 719500
+ 1439 × 1000 producing 1439000

= 2283693
