Question

900000-25*3571+59*(18550-17279):64

Answer 1

900000- 25*3571 +59*(18550-172790):64=( 18550- 17279)=1271=59*1271=74989=900000-89275+74989=900000-164264=735736

Answer 2

$900000 - 25 times 3571 + 59 times (18550 - 17279) div 64 = 900000 - 89275 + 59 times 1271 div 64 = 810725 + 1172 = 811897$