No problem, we've got 4242 and 4816 to multiply
4242 × 4816 = 4816 × (4242)
+ 4816 × 2 what gives us 9632
+ 4816 × 40 which equals 192640
+ 4816 × 200 which equals 963200
+ 4816 × 4000 that is equal 19264000

= 20429472
