There are 2 possible interpretations from the statement above. It is either one of the following
1. \((\frac{1000}{2})^{75}\)
2. \(\frac{1000}{2^{75}}\)
I will evaluate both for you, anyway. I have left both answers in plaintext form, so you can copy and paste the answers.:
1. \((\frac{1000}{2})^{75}=500^{75}=\)26469779601696885595885078146238811314105987548828125000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000
2. \(\frac{1000}{2^{75}}=\frac{1000}{37778931862957161709568}\div\frac{8}{8}=\frac{125}{4722366482869645213696}=\)
0.000000000000000000026469779601696885595885078146238811314105987548828125