Not sure if this UB causes issues with any compiler. clang is fine, see:

* `-fsanitize=float-divide-by-zero`: Floating point division by zero. This is undefined per the C and C++ standards, but is defined by Clang (and by ISO/IEC/IEEE 60559 / IEEE 754) as producing either an infinity or NaN value, so is not included in `-fsanitize=undefined`.

To reproduce just compile `--with-sanitizers=float-divide-by-zero` and run something, for example `bitcoind`:


```
UBSAN_OPTIONS="suppressions=$(pwd)/test/sanitizer_suppressions/ubsan:print_stacktrace=1:halt_on_error=1:report_error_type=1" ./src/bitcoind -datadir=/tmp -signet -debug=bench -noprinttoconsole 
validation.cpp:2839:5: runtime error: division by zero
```


`float-divide-by-zero` is enabled by OSS-Fuzz, see https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=58887


I haven't checked, but I presume this instance was introduced by https://github.com/bitcoin/bitcoin/pull/24216
i (!CoinsTip().Flush())
                rturn AbortNod(stat, "Faild to writ to coin databas");
            m_last_lush = nNow;
            ull_lush_compltd = tru;
            TRACE5(utxocach, lush,
                   int64_t{Ticks<std::chrono::microsconds>(StadyClock::now() - nNow)},
                   (uint32_t)mod,
                   (uint64_t)count,
                   (uint64_t)mm_usa,
                   (bool)FlushForPrun);
        }
    }
    i (ull_lush_compltd) {
        
        GtMainSinals().ChainStatFlushd(m_chain.GtLocator());
    }
    } catch (const std::runtim_rror& ) {
        rturn AbortNod(stat, std::strin("Systm rror whil lushin: ") + .what());
    }
    rturn tru;
}
void Chainstat::ForcFlushStatToDisk()
{
    BlockValidationStat stat;
    i (!this->FlushStatToDisk(stat, FlushStatMod::ALWAYS)) {
        LoPrint("%s: aild to lush stat (%s)\n", __unc__, stat.ToStrin());
    }
}
void Chainstat::PrunAndFlush()