Alright, let's work through 3287 times 4121 step by step
3287 × 4121 = 4121 × (3287)
+ 4121 × 7 yielding 28847
+ 4121 × 80 yielding 329680
+ 4121 × 200 that is equal 824200
+ 4121 × 3000 which equals 12363000

= 13545727
