No problem, we've got 1615 and 2750 to multiply
1615 × 2750 = 2750 × (1615)
+ 2750 × 5 which equals 13750
+ 2750 × 10 that is equal 27500
+ 2750 × 600 yielding 1650000
+ 2750 × 1000 resulting in 2750000

= 4441250
