diff --git a/flap/src/x86-64/retrolixToX86_64.ml b/flap/src/x86-64/retrolixToX86_64.ml
index 9052a36..d5f77d6 100644
--- a/flap/src/x86-64/retrolixToX86_64.ml
+++ b/flap/src/x86-64/retrolixToX86_64.ml
@@ -477,8 +477,12 @@ module InstructionSelector : InstructionSelector = struct
   ;;
 
   let div ~dst ~srcl ~srcr =
-    (* TODO *)
-    failwith "Students! This is your job! (div)"
+    (* Division *)
+    let rax = `Reg X86_64_Architecture.RAX in
+    mov ~src:srcl ~dst:rax
+    @ mov ~src:srcr ~dst:r15
+    @ [ Instruction cqto; Instruction (idivq ~src:r15)]
+    @ mov ~dst ~src:rax 
   ;;
 
   let andl ~dst ~srcl ~srcr =