164 : 12,9 = 1640 : 129 = $${\frac{{\mathtt{1\,640}}}{{\mathtt{129}}}} = {\mathtt{12.713\: \!178\: \!294\: \!573\: \!643\: \!4}}$$
$${\frac{{\mathtt{164}}}{{\mathtt{12.9}}}} = {\frac{{\mathtt{1\,640}}}{{\mathtt{129}}}} = {\mathtt{12.713\: \!178\: \!294\: \!573\: \!643\: \!4}}$$
1640 : 129 = 12 Rest 92
Gruß radix
!