Alright, let's work through 4171 times 6641 step by step
4171 × 6641 = 6641 × (4171)
+ 6641 × 1 that results in 6641
+ 6641 × 70 producing 464870
+ 6641 × 100 which equals 664100
+ 6641 × 4000 that is equal 26564000

= 27699611
