Alright, let's work through 3143 times 1381 step by step
3143 × 1381 = 1381 × (3143)
+ 1381 × 3 yielding 4143
+ 1381 × 40 yielding 55240
+ 1381 × 100 producing 138100
+ 1381 × 3000 producing 4143000

= 4340483
