No problem, we've got 1428 and 2812 to multiply
1428 × 2812 = 2812 × (1428)
+ 2812 × 8 giving us 22496
+ 2812 × 20 giving us 56240
+ 2812 × 400 what gives us 1124800
+ 2812 × 1000 resulting in 2812000

= 4015536
