Alright, let's work through 1586 times 3860 step by step
1586 × 3860 = 3860 × (1586)
+ 3860 × 6 that results in 23160
+ 3860 × 80 which equals 308800
+ 3860 × 500 that equals 1930000
+ 3860 × 1000 giving us 3860000

= 6121960
