>>13432084Just imagine that there were more or less single digit numbers beyond the commonly used 10 and just proceed counting with them. For example, in base-12 with X and E as placeholders for the tenth and eleventh single digit numbers it would count:
0,1,2,3,4,5,6,7,8,9,X,E,10...19,1X,1E,20...99,9X,9E,X0...E9,EX,EE,100 and so on