No problem, we've got 1455 and 6001 to multiply
1455 × 6001 = 6001 × (1455)
+ 6001 × 5 resulting in 30005
+ 6001 × 50 what gives us 300050
+ 6001 × 400 giving us 2400400
+ 6001 × 1000 yielding 6001000

= 8731455
