No problem, we've got 9489 and 2176 to multiply
9489 × 2176 = 2176 × (9489)
+ 2176 × 9 what gives us 19584
+ 2176 × 80 that equals 174080
+ 2176 × 400 which equals 870400
+ 2176 × 9000 that is equal 19584000

= 20648064
