No problem, we've got 3509 and 1139 to multiply
3509 × 1139 = 1139 × (3509)
+ 1139 × 9 that is equal 10251
+ 1139 × 00 producing 0
+ 1139 × 500 giving us 569500
+ 1139 × 3000 that results in 3417000

= 3996751
