No problem, we've got 1783 and 7080 to multiply
1783 × 7080 = 7080 × (1783)
+ 7080 × 3 which equals 21240
+ 7080 × 80 that equals 566400
+ 7080 × 700 producing 4956000
+ 7080 × 1000 that results in 7080000

= 12623640
