No problem, we've got 3620 and 5042 to multiply
3620 × 5042 = 5042 × (3620)
+ 5042 × 0 that equals 0
+ 5042 × 20 that equals 100840
+ 5042 × 600 that equals 3025200
+ 5042 × 3000 which equals 15126000

= 18252040
