No problem, we've got 5620 and 879 to multiply
5620 × 879 = 879 × (5620)
+ 879 × 0 resulting in 0
+ 879 × 20 what gives us 17580
+ 879 × 600 which equals 527400
+ 879 × 5000 what gives us 4395000

= 4939980
