We're going to solve 9942 multiplied by 1392
9942 × 1392 = 1392 × (9942)
+ 1392 × 2 that results in 2784
+ 1392 × 40 producing 55680
+ 1392 × 900 what gives us 1252800
+ 1392 × 9000 producing 12528000

= 13839264
