Alright, let's work through 1578 times 2587 step by step
1578 × 2587 = 2587 × (1578)
+ 2587 × 8 that equals 20696
+ 2587 × 70 yielding 181090
+ 2587 × 500 what gives us 1293500
+ 2587 × 1000 giving us 2587000

= 4082286
