Find the Remainder when $792379237923\ldots$upto 400 digits is divided by $101$?
when ($792379237923\ldots$400 digts)/$101$=
I learned this approach that I have to calculate(let say U)=Is the sum all of all the alternate groups starting with the rightmost
and (let say)Th=Is the the sum all of all the alternate groups starting with the second rightmost
But I am not following how to calculate U and Th
Can anyone guide me how to approach this problem?