No problem, we've got 3170 and 6380 to multiply
3170 × 6380 = 6380 × (3170)
+ 6380 × 0 what gives us 0
+ 6380 × 70 that results in 446600
+ 6380 × 100 which equals 638000
+ 6380 × 3000 that equals 19140000

= 20224600
