No problem, we've got 4787 and 1320 to multiply
4787 × 1320 = 1320 × (4787)
+ 1320 × 7 that results in 9240
+ 1320 × 80 giving us 105600
+ 1320 × 700 what gives us 924000
+ 1320 × 4000 giving us 5280000

= 6318840
