Create a function that takes a numeral (just digits without separators (e.g. 19093 instead of 19,093) and returns the standard way of reading a number, complete with punctuation.
sayNumber(0) ➞ "Zero."
sayNumber(11) ➞ "Eleven."
sayNumber(1043283) ➞ "One million, forty three thousand, two hundred and eighty three."
sayNumber(90376000010012) ➞ "Ninety trillion, three hundred and seventy six billion, ten thousand and twelve."
Must read any number from 0 to 999,999,999,999,999.