It is a symbolic representation of a number.
เถดเทเถ
99999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999
89999999999999999999999999999999999999999999999999999999999999999999999999999
this number is called BIG BOI NUMBER
0
1,000,000,000,000,000,000,000,000,000,000,000
7, 14, 21, 28, 35, 42, 49, 56, 63, 70, 77, 84, 91, 98.
999,999,999,999,999,999,999,999,999,999,999 + 1 = one decillion. The number you wrote is nine hundred ninety nine nonillion, nine hundred ninety nine octillion, nine hundred ninety nine septillion, nine hundred ninety nine sextillion, nine hundred ninety nine quintillion, nine hundred ninety nine quadrillion, nine hundred ninety nine trillion, nine hundred ninety nine billion, nine hundred ninety nine million, nine hundred ninety nine thousand, nine hundred ninety nine.