No problem, we've got 3899 and 2750 to multiply
3899 × 2750 = 2750 × (3899)
+ 2750 × 9 which equals 24750
+ 2750 × 90 that equals 247500
+ 2750 × 800 that is equal 2200000
+ 2750 × 3000 what gives us 8250000

= 10722250
