No problem, we've got 2156 and 9011 to multiply
2156 × 9011 = 9011 × (2156)
+ 9011 × 6 what gives us 54066
+ 9011 × 50 that is equal 450550
+ 9011 × 100 that is equal 901100
+ 9011 × 2000 that is equal 18022000

= 19427716
