ŸʒRS3ôOË
Try it online or verify some more test cases.
NOTE: In 05AB1E strings and integers are interchangeable, so the output numbers doesn't contain leading zeroes.
Explanation:
Ÿ # Create a range from the second to first input (inclusive on both sides)
# i.e. 038920 and 038910 →
# [38910,38911,38912,38913,38914,38915,38916,38917,38918,38919,38920]
ʒ # Filter this list by:
R # Reverse the number (the reverse is because the numbers lack leading zeroes)
# i.e. 38910 → '01983'
S # Transform it to a list of digits
# i.e. '01983' → ['0','1','9','8','3']
3ô # Split it into chunks of length 3
# i.e. ['0','1','9','8','3'] → [['0','1','9'],['8','3']]
O # Sum the digits in both parts
# i.e. [['0','1','9'],['8','3']] → [10,11]
Ë # Check if they are equal (if they are, they remain in the filtered list)
# i.e. [10,11] → 0