26285828528526374838262926282519×7483638292618193837383737364637272727÷73736373748488487363

I'm sorry, but the expression you provided is too long and complex for me to solve. It seems to consist of a combination of numbers and mathematical operators. If you have a specific question or need help with a particular concept related to your university exams, please let me know and I'll be happy to assist you.