`1÷1.0E-9 = 1.0E-9` (Scientific notation E is parsed as implicit multiplication)

When using scientific notation (the `E` symbol) in the denominator of a division operation, the calculator returns an incorrect result.

The parser appears to be treating the `E` notation as an implicit multiplication operation (`* 10^x`) subject to standard order of operations, rather than evaluating the entire scientific number as a single value.

**To Reproduce**
1. Input the expression `1÷1.0E-9`. The value `1.0E-9` can be copied from previous result and pasted into the expression.
2. The result will be `1.0E-9`, which is incorrect.

**Expected behavior**
The result should be `1.0E+9`

**Smartphone:**
- Device: Honor X8b
- OS: Android 14
- App version 3.1.4 (52)
- Language English

Start by reproducing `1÷1.0E-9` in the Android calculator and trace the parser handling of scientific notation in the denominator. Verify the result against the expected `1.0E+9`, including the pasted value scenario, and add coverage for this expression if the project’s tests provide a suitable parser test location.

Written by the indexing model from the issue text.