No problem, we've got 7809 and 7799 to multiply
7809 × 7799 = 7799 × (7809)
+ 7799 × 9 producing 70191
+ 7799 × 00 which equals 0
+ 7799 × 800 what gives us 6239200
+ 7799 × 7000 resulting in 54593000

= 60902391
