Alright, let's work through 3539 times 3372 step by step
3539 × 3372 = 3372 × (3539)
+ 3372 × 9 giving us 30348
+ 3372 × 30 what gives us 101160
+ 3372 × 500 that is equal 1686000
+ 3372 × 3000 producing 10116000

= 11933508
