Alright, let's work through 1871 times 8583 step by step
1871 × 8583 = 8583 × (1871)
+ 8583 × 1 resulting in 8583
+ 8583 × 70 that is equal 600810
+ 8583 × 800 what gives us 6866400
+ 8583 × 1000 producing 8583000

= 16058793
