Alright, let's work through 3508 times 3721 step by step
3508 × 3721 = 3721 × (3508)
+ 3721 × 8 which equals 29768
+ 3721 × 00 yielding 0
+ 3721 × 500 that results in 1860500
+ 3721 × 3000 that equals 11163000

= 13053268
