Classical computing is increasingly challenged with today's most complex compute problems - even at the scale of our most powerful supercomputers. Quantum computers hold the promise to dramatically extend our compute capabilities. By exploiting the properties of quantum physics to perform computations, they provide exponential speedups for certain types of problems. For example, quantum computers do exceptionally well with problems that require calculating a large number of possible combinations often found in optimization, simulation, or machine learning scenarios.

https://learn.microsoft.com/en-us/azure/architecture/example-scenario/quantum/quantum-computing-integration-with-classical-apps