Alright, let's work through 3718 times 6643 step by step
3718 × 6643 = 6643 × (3718)
+ 6643 × 8 what gives us 53144
+ 6643 × 10 what gives us 66430
+ 6643 × 700 that equals 4650100
+ 6643 × 3000 that is equal 19929000

= 24698674
