No problem, we've got 7383 and 1640 to multiply
7383 × 1640 = 1640 × (7383)
+ 1640 × 3 that is equal 4920
+ 1640 × 80 that results in 131200
+ 1640 × 300 resulting in 492000
+ 1640 × 7000 which equals 11480000

= 12108120
