No problem, we've got 1785 and 4105 to multiply
1785 × 4105 = 4105 × (1785)
+ 4105 × 5 which equals 20525
+ 4105 × 80 yielding 328400
+ 4105 × 700 producing 2873500
+ 4105 × 1000 resulting in 4105000

= 7327425
