No problem, we've got 5180 and 4029 to multiply
5180 × 4029 = 4029 × (5180)
+ 4029 × 0 that results in 0
+ 4029 × 80 which equals 322320
+ 4029 × 100 that results in 402900
+ 4029 × 5000 that is equal 20145000

= 20870220
