No problem, we've got 1245 and 3542 to multiply
1245 × 3542 = 3542 × (1245)
+ 3542 × 5 which equals 17710
+ 3542 × 40 what gives us 141680
+ 3542 × 200 producing 708400
+ 3542 × 1000 producing 3542000

= 4409790
