Theory:

Let us now see how we can convert the numbers in standard form to usual form.
Standard form to usual form.
  
1. Expand the given 10n and multiply it by the given number.
 
2. Then the result will be in the usual form.
Write the following numbers in usual form.
 
i) 1.0867×104
 
The given number is 1.0867×104.
 
Expand the 104 and multiply it by the given number.
 
1.0867×104=1.0867×10000=10867
 
Therefore, the usual form of 1.0867×104 is 10867.
 
 
ii) 0.8×10-2
 
The given number is 0.8×10-2.
 
Expand the 10-2 and multiply it by the given number.
 
 0.8×106=0.8×0.01=0.008.
 
Therefore, the usual form of 0.8×10-2 is 0.008.