No problem, we've got 4187 and 397 to multiply
4187 × 397 = 397 × (4187)
+ 397 × 7 that is equal 2779
+ 397 × 80 producing 31760
+ 397 × 100 that equals 39700
+ 397 × 4000 that results in 1588000

= 1662239
