No problem, we've got 1355 and 2807 to multiply
1355 × 2807 = 2807 × (1355)
+ 2807 × 5 giving us 14035
+ 2807 × 50 giving us 140350
+ 2807 × 300 that equals 842100
+ 2807 × 1000 that results in 2807000

= 3803485
