No problem, we've got 4247 and 4783 to multiply
4247 × 4783 = 4783 × (4247)
+ 4783 × 7 producing 33481
+ 4783 × 40 resulting in 191320
+ 4783 × 200 what gives us 956600
+ 4783 × 4000 giving us 19132000

= 20313401
