No problem, we've got 5550 and 3894 to multiply
5550 × 3894 = 3894 × (5550)
+ 3894 × 0 what gives us 0
+ 3894 × 50 yielding 194700
+ 3894 × 500 that is equal 1947000
+ 3894 × 5000 yielding 19470000

= 21611700
