No problem, we've got 1392 and 6336 to multiply
1392 × 6336 = 6336 × (1392)
+ 6336 × 2 that results in 12672
+ 6336 × 90 which equals 570240
+ 6336 × 300 giving us 1900800
+ 6336 × 1000 giving us 6336000

= 8819712
