Every scribe in the warehouse was given a small pile of scrolls and told to count specific words. They did this all at once, in parallel.
To explain how this worked, the kingdom published a manual: Hadoop: The Definitive Guide . Here is the story of the three pillars it introduced: Chapter 1: The Magic Warehouse (HDFS)
A final group of scribes added up the notes at each table.
What used to take a year now took an afternoon because everyone worked together. Chapter 3: The Elephant’s Friends (The Ecosystem)