No problem, we've got 6405 and 8700 to multiply
6405 × 8700 = 8700 × (6405)
+ 8700 × 5 which equals 43500
+ 8700 × 00 that is equal 0
+ 8700 × 400 that equals 3480000
+ 8700 × 6000 resulting in 52200000

= 55723500
