feat(division): add solution for exercise

sh/tests/solutions/division.sh

@@ -0,0 +1,28 @@
+#!/usr/bin/env bash
+
+# Check if two arguments were provided
+if [ $# -ne 2 ]
+then
+    echo "Error: two numbers must be provided"
+    exit 1
+fi
+
+# Check if the arguments are numeric
+if ! [[ $1 =~ ^-?[0-9]*\.?[0-9]+$ ]] || ! [[ $2 =~ ^-?[0-9]*\.?[0-9]+$ ]]
+then
+    echo "Error: both arguments must be numeric"
+    exit 1
+fi
+
+# Check if the second argument is not 0
+if [ $(echo "$2 == 0" | bc) -eq 1 ]
+then
+    echo "Error: division by zero is not allowed"
+    exit 1
+fi
+
+# Divide the first argument by the second using bc
+result=$(echo "$1 / $2" | bc -l)
+
+# Output the result
+echo $result