No problem, we've got 7877 and 7823 to multiply
7877 × 7823 = 7823 × (7877)
+ 7823 × 7 producing 54761
+ 7823 × 70 which equals 547610
+ 7823 × 800 that is equal 6258400
+ 7823 × 7000 producing 54761000

= 61621771
