Step 1: Since 4357634 do not have a decimal point, we will add one at the end of the number 4357634.

4357634.

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).

4.357634.

Step 3: We moved the decimal point 6 spaces to the right. Therefore, the exponent on base 10 will be positive 6.Now we know that the:

Mantissa = 4.357634

Exponent = 6

So, the solution is: