No problem, we've got 4621 and 3938 to multiply
4621 × 3938 = 3938 × (4621)
+ 3938 × 1 that equals 3938
+ 3938 × 20 that results in 78760
+ 3938 × 600 that results in 2362800
+ 3938 × 4000 yielding 15752000

= 18197498
