Alright, let's work through 3688 times 2161 step by step
3688 × 2161 = 2161 × (3688)
+ 2161 × 8 resulting in 17288
+ 2161 × 80 which equals 172880
+ 2161 × 600 resulting in 1296600
+ 2161 × 3000 that is equal 6483000

= 7969768
