$(\frac{34}{81} * 85\frac{13}{17} - 4\frac{7}{8} * \frac{80}{117}) * (29\frac{11}{35} * 52\frac{1}{2} - 121\frac{5}{19} * 3\frac{9}{16}) = (\frac{34}{81} * \frac{1458}{17} - \frac{39}{8} * \frac{80}{117}) * (\frac{1026}{35} * \frac{105}{2} - \frac{2304}{19} * \frac{57}{16}) = (\frac{17 * 2}{81} * \frac{18 * 81}{17} - \frac{39}{8} * \frac{8 * 10}{39 * 3}) * (\frac{513 * 2}{35} * \frac{3 * 35}{2} - \frac{144 * 16}{19} * \frac{3 * 19}{16}) = (2 * 18 - 1 * \frac{10}{3}) * (513 * 3 - 144 * 3) = (36 - \frac{10}{3}) * (1539 - 432) = (35\frac{3}{3} - 3\frac{1}{3}) * 1107 = 32\frac{2}{3} * 1107 = 35424\frac{2214}{3} = 35424 + 738 = 36162$