No problem, we've got 3125 and 1781 to multiply
3125 × 1781 = 1781 × (3125)
+ 1781 × 5 producing 8905
+ 1781 × 20 what gives us 35620
+ 1781 × 100 giving us 178100
+ 1781 × 3000 giving us 5343000

= 5565625
