Handling of decimal fractions for coins is error prone. I often have to count more than twice the number of zeroes after the dot.
The proposal here is to eliminate the fractional zeros and simply put their count before a symbol.
The result is very concise and improve readability.
Examples:
0.012 becomes 1|12
0.0012 becomes 2|12
0.00012 becomes 3|12
...
0.00000012 becomes 6|12
At a glance, 0.00000124 looks similar to 0.0000124
BUT
5|124 is clearly different than 4|124
The symbol pronunciation is simply "zero(s)".
Example:
7|8 is pronounced "7 zeros 8" and represent the value 0.00000008
(If the character '|' is not available, then I suggest to use instead a lower case 'z')