Деление больших чисел. Пмогите найти ошибку!

Program Delenie;
Uses
Crt;
Const
Max=1000;
Type
Mas=Array[1..Max] Of ShortInt;
Var
S:Boolean;
M1,M2:String;
A1,A2,Mm1,Mm2,P:Mas;
Cod:Integer;
f,k,l,i,j,z,C,q:Integer;
M,N1,N2:Integer;
Function Sravn(M:Integer;A1,Mm2:Mas):Boolean;
Var
k:Integer;
Begin
If M>N2 Then Sravn:=True;
If M<N2 Then Sravn:=False;
If M=N2 Then
For k:=1 To M Do
Begin
If A1[k]<Mm2[k]
Then
Begin
k:=M;
Sravn:=False;
End;
If A1[k]>Mm2[k]
Then
Begin
Sravn:=True;
k:=M;
End;
If A1[k]=Mm2[k] Then Sravn:=True;
End;
End;
Begin
ClrScr;
WriteLn(' Vvedite delimoe');
Write(' -> ');
ReadLn(M1);
N1:=LengTh(M1);
For i:=1 To N1 Do Val(M1,Mm1,Cod);
WriteLn(' Vvedite delitel');
Write(' -> ');
ReadLn(M2);
N2:=LengTh(M2);
For i:=1 To N2 Do Val(M2,Mm2,Cod);
For i:=1 To N2-1 Do A1:=Mm1;
M:=N2-1;
i:=M;
While(i<N1)Do
Begin
for q:=1 to M do write(A1[q]);write(' ');
While ((Sravn(M,A1,Mm2)=False) And (i<N1)) Do
Begin
M:=M+1;
i:=i+1;
A1[M]:=Mm1;
for q:= 1 to M do write(A1[q]);write(' ');
End;
j:=0;
While(Sravn(M,A1,Mm2)=True)Do
Begin
f:=N2+1;
For k:=M DownTo M-N2 Do
Begin
f:=f-1;
If A1[k]>=Mm2[f]
Then
A2[k]:=A1[k]-Mm2[f]
Else
Begin
A1[k]:=A1[k]+10;
A1[k-1]:=A1[k-1]-1;
For l:=k DownTo 1 Do
If A1[l]<0 Then
Begin
A1[l-1]:=A1[l-1]-1;
A1[l]:=A1[l]+10;
End;
A2[k]:=A1[k]-Mm2[f];
End;
End;
For l:=M-N2-1 DownTo 1 Do A2[l]:=A1[l];
j:=j+1;
P[i-N2+1]:=j;
While((A2[1]=0)And(M>0))Do
Begin
For z:=1 To M-1 Do A2[z]:=A2[z+1];
M:=M-1;
A2[M+1]:=0;
End;
For z:=1 To M Do A1[z]:=A2[z];
End;
While((A1[1]=0)And(M>0))Do
Begin
For z:=1 To M-1 Do A1[z]:=A1[z+1];
M:=M-1;
A1[M+1]:=0;
End;
End;
WriteLn(' Chastnoe: ');
Write(' -> ');
j:=1;
While ((P[j]=0)And(j>=N1-N2)) Do j:=j+1;
For i:=j To N1-N2+1 Do Write(P);
WriteLn;
If M=0 Then
Begin
M:=1;
A1[M]:=0;
End;
WriteLn(' Ostatok');
Write(' -> ');
For i:=1 To M Do Write(A1);
ReadLn;
End.