No problem, we've got 7158 and 3920 to multiply
7158 × 3920 = 3920 × (7158)
+ 3920 × 8 that results in 31360
+ 3920 × 50 producing 196000
+ 3920 × 100 that results in 392000
+ 3920 × 7000 resulting in 27440000

= 28059360
