No problem, we've got 1310 and 8320 to multiply
1310 × 8320 = 8320 × (1310)
+ 8320 × 0 which equals 0
+ 8320 × 10 that equals 83200
+ 8320 × 300 resulting in 2496000
+ 8320 × 1000 giving us 8320000

= 10899200
