To decode the Base58 string `1FwZXt6EpRT7Fkndzv6K4b4DFoT4trbMrV`, we'll first convert it from Base58 to binary, and then we can calculate its decimal representation. Here's a general process to do that:
### Step 1: Base58 to Binary
1. **Base58 Alphabet**: The Base58 alphabet is:
```
123456789ABCDEFGHJKLMNPQRSTUVWXYZabcdefghijkmnopqrstuvwxyz
```
2. **Conversion**:
Each character in the Base58 string corresponds to a value:
- The


