The Rare isotope Accelerator complex for ON-line experiments (RAON) utilizes the ISOL method to produce rare isotopes. In this process, protons can be accelerated and directed to collide with a uranium-238 target, leading to the extraction of rare isotopes from the resulting fragments. This research involves the prediction of proton-induced uranium fission nuclear reactions through calculations based on the Langevin method. To evaluate the predictive accuracy, we employ a well-established multimodal empirical formula for comparison. A discrepancy in the MDFF become evident in high-proton beam fission, emphasizing the need for model improvements. By visualizing the potential energy surface of the compound nucleus, the significance of shell effects is recognized. This study serves as motivation to identify and implement improvements in our approach, with the goal of enhancing the accuracy of fission predictions in the future.