No problem, we've got 1358 and 7720 to multiply
1358 × 7720 = 7720 × (1358)
+ 7720 × 8 giving us 61760
+ 7720 × 50 what gives us 386000
+ 7720 × 300 giving us 2316000
+ 7720 × 1000 which equals 7720000

= 10483760
