One of my friends recently gave a mock test of a math exam in which he was asked this horrific question. He asked the same to me and I was totally blank on looking at it. So, it will be a huge help if any of you can solve this. Here is the question:
A 79 digit long number is made by writing the natural numbers from 1 to 44 in order like 1234567891011121314.....424344. What is the remainder when this number is divided by 45?
Thanks in advance! Enjoy Solving!