fix: use divideByExact when available

Author: norberttech

src/core/etl/src/Flow/Calculator/Calculator.php

@@ -39,7 +39,11 @@ public function divide(int|float|string $a, int|float|string $b, ?int $scale = n
     {
         try {
             if ($scale === null && $rounding === null) {
-                $result = BigDecimal::of($a)->dividedBy(BigDecimal::of($b));
+                if (\method_exists(BigDecimal::class, 'dividedByExact')) {
+                    $result = BigDecimal::of($a)->dividedByExact(BigInteger::of($b));
+                } else {
+                    $result = BigDecimal::of($a)->dividedBy(BigDecimal::of($b));
+                }
 
                 if (!$result->hasNonZeroFractionalPart()) {
                     return $result->toInt();