No problem, we've got 4340 and 4779 to multiply
4340 × 4779 = 4779 × (4340)
+ 4779 × 0 what gives us 0
+ 4779 × 40 that is equal 191160
+ 4779 × 300 that results in 1433700
+ 4779 × 4000 what gives us 19116000

= 20740860
