Find the value of `734856 xx 9999`.

Answer

To find the value of \( 734856 \times 9999 \), we can use a mathematical trick that simplifies the multiplication with numbers like 9999.

### Step-by-Step Solution:

1. **Recognize the relationship with 10000**:
We know that \( 9999 = 10000 - 1 \). This means we can rewrite the multiplication as:
\[ 734856 \times 9999 = 734856 \times (10000 - 1) \]

2. **Distribute the multiplication**:
Using the distributive property, we can expand the equation:
\[ 734856 \times 9999 = 734856 \times 10000 - 734856 \times 1 \]

3. **Calculate \( 734856 \times 10000 \)**:
Multiplying by 10000 simply shifts the number four places to the left:
\[ 734856 \times 10000 = 7348560000 \]

4. **Calculate \( 734856 \times 1 \)**:
This is straightforward:
\[ 734856 \times 1 = 734856 \]

5. **Subtract the two results**:
Now we subtract the second result from the first:
\[ 7348560000 - 734856 = 7348560000 - 000734856 = 7347825144 \]

Thus, the value of \( 734856 \times 9999 \) is:
\[ \boxed{7347825144} \]