No problem, we've got 4057 and 2345 to multiply
4057 × 2345 = 2345 × (4057)
+ 2345 × 7 that is equal 16415
+ 2345 × 50 what gives us 117250
+ 2345 × 000 which equals 0
+ 2345 × 4000 that equals 9380000

= 9513665
