Alright, let's work through 4135 times 5601 step by step
4135 × 5601 = 5601 × (4135)
+ 5601 × 5 yielding 28005
+ 5601 × 30 resulting in 168030
+ 5601 × 100 giving us 560100
+ 5601 × 4000 which equals 22404000

= 23160135
