No problem, we've got 1580 and 3114 to multiply
1580 × 3114 = 3114 × (1580)
+ 3114 × 0 what gives us 0
+ 3114 × 80 yielding 249120
+ 3114 × 500 what gives us 1557000
+ 3114 × 1000 resulting in 3114000

= 4920120
