No problem, we've got 3983 and 1239 to multiply
3983 × 1239 = 1239 × (3983)
+ 1239 × 3 yielding 3717
+ 1239 × 80 that equals 99120
+ 1239 × 900 giving us 1115100
+ 1239 × 3000 that is equal 3717000

= 4934937
