Opcode number: 142
Short description: Fail the script unconditionally, does not even need to be executed.
OP_2DIV is a disabled opcode in the Bitcoin scripting system.
OP_2DIV was initially designed to perform division operations by dividing the top item on the stack by 2.
Due to concerns about potential vulnerabilities and the desire to simplify the scripting language,
OP_2DIV (along with several other opcodes) was disabled early in bitcoin's development.
OP_2DIV is disabled, any script that contains it will render the transaction invalid regardless of context.