No problem, we've got 1242 and 4392 to multiply
1242 × 4392 = 4392 × (1242)
+ 4392 × 2 that is equal 8784
+ 4392 × 40 that is equal 175680
+ 4392 × 200 that is equal 878400
+ 4392 × 1000 that equals 4392000

= 5454864
