No problem, we've got 3453 and 1705 to multiply
3453 × 1705 = 1705 × (3453)
+ 1705 × 3 what gives us 5115
+ 1705 × 50 what gives us 85250
+ 1705 × 400 which equals 682000
+ 1705 × 3000 which equals 5115000

= 5887365
