You would do 4 divided by 3. Which is 1.33 with repeating 3s. You would then round to the nearest hundredth which would 1.33. You can multiply 1.33 and 3 to check your work. Although it might not exactly 4 it is not that big of a deal.
Hope this helps!
0.9285714 has 7 digits after the decimal sign. So it is equivalent to the fraction with a numerator 9285714 and a denominator 10000000

Result:
The decimal number 0.9285714 is equivalent to the fraction
4642857 / 5000000

4⁽²ˣ ⁺ ⁵⁾ = 8³ˣ
But 4 = 2² and 8 = 2³
4⁽²ˣ ⁺ ⁵⁾ = 8³ˣ
2²⁽²ˣ ⁺ ⁵⁾ = (2³)³ˣ
Multiply out the powers, also since the
2⁴ˣ ⁺ ¹⁰ = 2⁹ˣ
Since the bases are the same, hence the powers are also the same.
4x + 10 = 9x
4x - 9x = -10
-5x = -10
x = -10/-5
x = 2
Hope this explains it.
Okay, what do we know?
1*6=6, right?
Well, then 9*6=? (you should know your math facts by now)