When you mistakenly divide a number by 21, not by 12, it is divisible by 4. Find the value when 4 is added to the correct quotient.
4 21 [OP_MUL] 12 [OP_FDIV] 4 [OP_ADD]
var_a = 4
var_b = 21
var_c = var_a * var_b
var_d = 12
var_e = var_c // var_d
var_f = 4
var_g = var_e + var_f
print(int(var_g))