CREATE TABLE table_41894 ("Name" TEXT, "Level" FLOAT, "Digits" FLOAT, "Average size  ( square miles ) " TEXT, "Number of HUs  ( approximate ) " FLOAT, "Example name" TEXT, "Example code  ( HUC ) " FLOAT)

What's the approximate number of HUs when there are more than 2 digits, and 6 levels?
SELECT COUNT("Number of HUs (approximate)") FROM table_41894 WHERE "Digits" > '2' AND "Level" = '6'
SELECT COUNT("Number of HUs (approximate)") FROM "table_41894" WHERE "Digits" > '2' AND "Level" = '6'