Help regarding divorce

So my brother have 2 child both are girls one 10 years old and other is 2 years old also my brother is earning 60k per month also a govt servent. Like divorce hoga to kitne tk settle hoga koi saboot nhi h unke pass dahej jaisa also my brother wife is very abusive mera bhai suicide krne ki bhi sochta h please give me some advice also ignore my English