Alright, let's work through 3210 times 4231 step by step
3210 × 4231 = 4231 × (3210)
+ 4231 × 0 which equals 0
+ 4231 × 10 that results in 42310
+ 4231 × 200 producing 846200
+ 4231 × 3000 yielding 12693000

= 13581510
