No problem, we've got 2420 and 5591 to multiply
2420 × 5591 = 5591 × (2420)
+ 5591 × 0 that is equal 0
+ 5591 × 20 that is equal 111820
+ 5591 × 400 what gives us 2236400
+ 5591 × 2000 that is equal 11182000

= 13530220
