Articleship Work in Big4

Hello,
          There is a request to be made over here - Students pursuing articleship or pursued articleship in big 4 are requested to please share the kind of work they are made to do . Usually in small firms articles are made to do a lot of tick work like purchase bills sales bills and other simple vouching.
          The variety of work done in big 4 is a lot so let this thread contain the experiences of different articles of big 4 and the kind of work they do or did as articles in big 4.
         Please be kind enough to spare some time and let us know about it .
         Thanks a lot in advance