diff --git a/moo/kernel/test-001.moo b/moo/kernel/test-001.moo
index 419b1f7..b5fa4ec 100644
--- a/moo/kernel/test-001.moo
+++ b/moo/kernel/test-001.moo
@@ -384,6 +384,7 @@ extend MyObject
 			[ self testBigintDiv: 16rfffffffe0000000080000000 divisor: 16r0000ffff0000000080000000 count: 12345 ],
 			[ self testBigintDiv: 16rfffffffffffffffe divisor: 16rffffffff count: 2000 ],
 			[ self testBigintDiv: 68651967526299315528548877601614136727014 divisor: 1729382256910270380 count: 1 ],
+			[ self testBigintDiv: 43943618413704592900396132847030223073729048496 divisor: 1135814937804493543741046072006331 count: 1 ],
 
 
 			## =========================
diff --git a/moo/lib/bigint.c b/moo/lib/bigint.c
index 21edc35..7a91d6e 100644
--- a/moo/lib/bigint.c
+++ b/moo/lib/bigint.c
@@ -1833,8 +1833,7 @@ static void divide_unsigned_array2 (moo_t* moo, const moo_liw_t* x, moo_oow_t xs
 		/* TODO: optimize it with ASM - no seperate / and % */
 		quo = dw / y1;
 		rem = dw % y1;
-		/*rem = dw - (quo * y1);*/
-#if 0
+#if 1
 	adjust_quotient:
 		if (quo > MOO_TYPE_MAX(moo_liw_t) || (quo * y2) > ((rem << MOO_LIW_BITS) + q[i - 2]))
 		{