Alright, let's work through 1667 times 9171 step by step
1667 × 9171 = 9171 × (1667)
+ 9171 × 7 resulting in 64197
+ 9171 × 60 which equals 550260
+ 9171 × 600 that equals 5502600
+ 9171 × 1000 yielding 9171000

= 15288057
