To make a ribbon loop, you want to cut the ribbons into 0.82 kilometers (km) long pieces. Find the length of the remaining ribbon length after making ribbon loops out of 53.73 kilometers (km) of ribbon.
53.73 0.82 [OP_MOD] 1000 [OP_MUL]
var_a = 53.73
var_b = 0.82
var_c = var_a % var_b
var_d = 1000
var_e = var_c * var_d
print(int(eval('{:.2f}'.format(round(var_e+1e-10,2)))))