No problem, we've got 9972 and 4284 to multiply
9972 × 4284 = 4284 × (9972)
+ 4284 × 2 that equals 8568
+ 4284 × 70 that is equal 299880
+ 4284 × 900 what gives us 3855600
+ 4284 × 9000 that is equal 38556000

= 42720048
