No problem, we've got 4105 and 5229 to multiply
4105 × 5229 = 5229 × (4105)
+ 5229 × 5 what gives us 26145
+ 5229 × 00 giving us 0
+ 5229 × 100 that equals 522900
+ 5229 × 4000 giving us 20916000

= 21465045
