No problem, we've got 2154 and 1814 to multiply
2154 × 1814 = 1814 × (2154)
+ 1814 × 4 that is equal 7256
+ 1814 × 50 what gives us 90700
+ 1814 × 100 which equals 181400
+ 1814 × 2000 that equals 3628000

= 3907356
