Alright, let's work through 3929 times 8161 step by step
3929 × 8161 = 8161 × (3929)
+ 8161 × 9 producing 73449
+ 8161 × 20 that is equal 163220
+ 8161 × 900 which equals 7344900
+ 8161 × 3000 yielding 24483000

= 32064569
