Convert a numerical value in days to its corresponding value in weeks.
Numerical Value: 57
57 days is approximately equivalent to 8.142857142857143 weeks.
Complete the following task based on the instruction and optional input provided.### Instruction:
Convert a numerical value in days to its corresponding value in weeks.

### Input:
Numerical Value: 57

### Output:
57 days is approximately equivalent to 8.142857142857143 weeks.