Alright, let's work through 3894 times 1610 step by step
3894 × 1610 = 1610 × (3894)
+ 1610 × 4 what gives us 6440
+ 1610 × 90 that equals 144900
+ 1610 × 800 that results in 1288000
+ 1610 × 3000 producing 4830000

= 6269340
