No problem, we've got 8484 and 9180 to multiply
8484 × 9180 = 9180 × (8484)
+ 9180 × 4 which equals 36720
+ 9180 × 80 which equals 734400
+ 9180 × 400 that equals 3672000
+ 9180 × 8000 that results in 73440000

= 77883120
