No problem, we've got 2129 and 4340 to multiply
2129 × 4340 = 4340 × (2129)
+ 4340 × 9 that is equal 39060
+ 4340 × 20 giving us 86800
+ 4340 × 100 producing 434000
+ 4340 × 2000 that is equal 8680000

= 9239860
