Decimal modulo sometimes returns incorrect results

The following query returns an incorrect result:

select cast(11111 as decimal(6,1)) % cast(2 as decimal(8,6))

Result:

-1.901888

We get this result with both decimal_v1 and decimal_v2.

Modifying the query by removing one of the 1's has the following effect:

select cast(1111 as decimal(6,1)) % cast(2 as decimal(8,6))

Result:

1.000000