No problem, we've got 3936 and 6446 to multiply
3936 × 6446 = 6446 × (3936)
+ 6446 × 6 giving us 38676
+ 6446 × 30 which equals 193380
+ 6446 × 900 that equals 5801400
+ 6446 × 3000 giving us 19338000

= 25371456
