Alright, let's work through 2686 times 7974 step by step
2686 × 7974 = 7974 × (2686)
+ 7974 × 6 that results in 47844
+ 7974 × 80 yielding 637920
+ 7974 × 600 yielding 4784400
+ 7974 × 2000 that equals 15948000

= 21418164
