No problem, we've got 7840 and 5873 to multiply
7840 × 5873 = 5873 × (7840)
+ 5873 × 0 producing 0
+ 5873 × 40 what gives us 234920
+ 5873 × 800 yielding 4698400
+ 5873 × 7000 yielding 41111000

= 46044320
