Step 1: The exponent for 10 is -11. Since the exponent is negative, we must move the decimal point of a number 5.0238908 11 places to the left.
5.0238908 → .----------5.0238908
Step 2: Now we just need to replace empty spaces (dashes) with zeros and to delete old decimal point (the black one) to get:
.000000000050238908