0.079 × 103 written in standard notation is 79
7 with 9 remaining 79 - 9 = 70 = 10 x 7
10.2658
I'm not sure what number "10 squared 5" is. Instead of 79 times 10 to the whatever that exponent turns out to be, make it 7.9 times 10 to the one more than that.
7.9 x 10^6
Exactly 79 times
79/7 = 11.286 times (approx).
79
7.9
856 times 79 = 67624
79-prime (1 times 79) 69-composite (2 times 69)
195.79*10-9 = 0.000 000 195 79