Alright, let's work through 3556 times 231 step by step
3556 × 231 = 231 × (3556)
+ 231 × 6 yielding 1386
+ 231 × 50 which equals 11550
+ 231 × 500 which equals 115500
+ 231 × 3000 that equals 693000

= 821436
