What is 0.7 x 8?
0.7 x 8 is a simple multiplication problem. Here's how to solve it:
Understanding Decimals
 Decimals represent parts of a whole number. 0.7 is the same as 7/10, meaning seven out of ten parts.
 Multiplication is repeated addition. 0.7 x 8 is the same as adding 0.7 eight times.
Calculation
You can solve this problem in a couple of ways:

Direct Multiplication:
 Multiply 7 x 8 = 56.
 Since 0.7 has one decimal place, the answer will also have one decimal place.
 Therefore, 0.7 x 8 = 5.6

Fractions:
 Convert 0.7 to a fraction: 7/10
 Multiply the numerator (7) by 8: 7 x 8 = 56
 Keep the denominator (10): 56/10
 Simplify the fraction to a decimal: 56/10 = 5.6
Conclusion
The product of 0.7 and 8 is 5.6.