No problem, we've got 4507 and 8402 to multiply
4507 × 8402 = 8402 × (4507)
+ 8402 × 7 which equals 58814
+ 8402 × 00 what gives us 0
+ 8402 × 500 giving us 4201000
+ 8402 × 4000 what gives us 33608000

= 37867814
