No problem, we've got 8460 and 8423 to multiply
8460 × 8423 = 8423 × (8460)
+ 8423 × 0 what gives us 0
+ 8423 × 60 giving us 505380
+ 8423 × 400 that is equal 3369200
+ 8423 × 8000 resulting in 67384000

= 71258580
