Use I/F- and F/I converters.

Toeternietoe

The max of the counter is: 999.999

It's not the maximum value of the counter that is important here, but rather the fact that over 32,767 is counted up to a maximum of 100,000.

And any value from the counter above 32,767 will be limited to 32,767 in mathematical instruction B038.

That's why he want to divide the counter value by 10.