No problem, we've got 9420 and 2544 to multiply
9420 × 2544 = 2544 × (9420)
+ 2544 × 0 that is equal 0
+ 2544 × 20 that is equal 50880
+ 2544 × 400 that equals 1017600
+ 2544 × 9000 that is equal 22896000

= 23964480
