(29808*423+168)-(57*17-209)*6:3+533700:9=12666732

29 808 * 423 = 12 608 784;

12 608 784 + 168 = 12 608 952;

57 * 17 = 969;

969 - 209 = 760;

760 * 6 = 4560;

4560 / 3 = 1520;

12 608 952 - 1520 = 12 607 432;

533 700 / 9 = 59 300;

12 607 432 + 59 300 = 12 666 732.