Alright, let's work through 3444 times 6258 step by step
3444 × 6258 = 6258 × (3444)
+ 6258 × 4 yielding 25032
+ 6258 × 40 producing 250320
+ 6258 × 400 giving us 2503200
+ 6258 × 3000 that equals 18774000

= 21552552
