No problem, we've got 6410 and 1877 to multiply
6410 × 1877 = 1877 × (6410)
+ 1877 × 0 that equals 0
+ 1877 × 10 that is equal 18770
+ 1877 × 400 what gives us 750800
+ 1877 × 6000 what gives us 11262000

= 12031570
