No problem, we've got 4312 and 3822 to multiply
4312 × 3822 = 3822 × (4312)
+ 3822 × 2 what gives us 7644
+ 3822 × 10 producing 38220
+ 3822 × 300 giving us 1146600
+ 3822 × 4000 what gives us 15288000

= 16480464
