Step 1: Since 1223 do not have a decimal point, we will add one at the end of the number 1223.
1223.
Step 2: Move the decimal point from its current position (the black dot) to a position immediately to the right of the first nonzero digit (the red dot).
1.223.
Step 3: We moved the decimal point 3 spaces to the right. Therefore, the exponent on base 10 will be positive 3.Now we know that the:
Mantissa = 1.223
Exponent = 3
So, the solution is:
$$1223 = \color{blue}{ 1.223} \cdot 10^{ \color{red}{ 3 }}$$