Cryptarithmetic

Replace the letters by figures to reconstitute the numbers.
Two different letters like a and b or even a and A represent different figures.

The total number of different letters must thus be lower or equal to 10.

An non-zero integer does not begin with one zero, (0.5 is correct).

A decimal 3.0 is incorrect (See a * b.c = d)

The more there will be letters, the longer exhaustive research will be (it can even be very long because the program is written in Javascript and not in java).

You can use the signs of operations + - * / as well as the brackets.
In fact any correct expression in Javascript should be accepted (after replacement of the letters).
A single sign = is necessary.