No problem, we've got 6915 and 1557 to multiply
6915 × 1557 = 1557 × (6915)
+ 1557 × 5 what gives us 7785
+ 1557 × 10 that equals 15570
+ 1557 × 900 which equals 1401300
+ 1557 × 6000 that results in 9342000

= 10766655
