35035÷(35×91)
=35035÷35÷91
=1001÷91
=11
18000÷75×24
=18000x24/75
=18000x8/25
=180x8x(100/25)
=5760
33066÷66
=(330x100+66)÷66
=330÷66x100+66÷66
=500+1
=501