No problem, we've got 3900 and 3898 to multiply
3900 × 3898 = 3898 × (3900)
+ 3898 × 0 resulting in 0
+ 3898 × 00 that equals 0
+ 3898 × 900 which equals 3508200
+ 3898 × 3000 that is equal 11694000

= 15202200
