No problem, we've got 5645 and 4138 to multiply
5645 × 4138 = 4138 × (5645)
+ 4138 × 5 that results in 20690
+ 4138 × 40 giving us 165520
+ 4138 × 600 producing 2482800
+ 4138 × 5000 producing 20690000

= 23359010
