No problem, we've got 2135 and 4359 to multiply
2135 × 4359 = 4359 × (2135)
+ 4359 × 5 what gives us 21795
+ 4359 × 30 that equals 130770
+ 4359 × 100 that equals 435900
+ 4359 × 2000 what gives us 8718000

= 9306465
