Alright, let's work through 3685 times 8656 step by step
3685 × 8656 = 8656 × (3685)
+ 8656 × 5 which equals 43280
+ 8656 × 80 producing 692480
+ 8656 × 600 which equals 5193600
+ 8656 × 3000 which equals 25968000

= 31897360
