No problem, we've got 6664 and 2812 to multiply
6664 × 2812 = 2812 × (6664)
+ 2812 × 4 that is equal 11248
+ 2812 × 60 what gives us 168720
+ 2812 × 600 that is equal 1687200
+ 2812 × 6000 which equals 16872000

= 18739168
