No problem, we've got 4130 and 620 to multiply
4130 × 620 = 620 × (4130)
+ 620 × 0 what gives us 0
+ 620 × 30 that is equal 18600
+ 620 × 100 what gives us 62000
+ 620 × 4000 which equals 2480000

= 2560600
